owl:Ontology
dct:creator
Hans Cools, MD, knowledge engineer, ontologist, software developer, University of Basel, Switzerland
dct:description
Formal description of time relations.
skos:note
For formal temporal reasoning, using e.g. the Unix Epoch time.
Basic model is a space-time thing, which can be described in different levels of abstraction, mostly with input and output, with a beginning and end, wherein a thing can change and/or act, in a certain way. (en)
There are properties with list as range. A list keeps things together in a better way than a blank node and improves reasoning performance. List content is tripled when needed, e.g. to permit SPARQL querying. (en)
dct:publisher
Universities of Basel, Bern, and Zürich, Switzerland
rdfs:seeAlso
dct:title
An ontology about time relations
owl:versionInfo
2020-06-11

Properties

time:after
a
owl:TransitiveProperty
rdfs:comment
Linking a later to an earlier event.
rdfs:domain
owl:inverseOf
rdfs:isDefinedBy
rdfs:label
after (en)
nach (de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:before
a
owl:TransitiveProperty
rdfs:comment
Linking an earlier to a later event.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
vor (de)
before (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:beginsAfter
a
owl:TransitiveProperty
rdfs:comment
Linking a later beginning to an earlier beginning event.
rdfs:domain
owl:inverseOf
time:beginsBefore
a
owl:TransitiveProperty
rdfs:comment
Linking an earlier beginning to a later beginning event.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
beginnt vor (de)
begins before (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
rdfs:isDefinedBy
rdfs:label
beginnt nach (de)
begins after (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:beginsBeforeEndOf
a
owl:ObjectProperty
rdfs:comment
Linking a beginning event to a later ending of another event.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
begins before end of (en)
beginnt vor Ende von (de)
skos:note
Used in an N3 rule conclusion.
owl:propertyChainAxiom
rdfs:range
rdfs:subPropertyOf
time:beginsDuring
a
owl:ObjectProperty
rdfs:comment
Specifying an event during which another event begins.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
begins during (en)
beginnt während (de)
rdfs:range
rdfs:subPropertyOf
time:beginsSameAsEndOf
a
owl:ObjectProperty
rdfs:comment
Linking a beginning event to another event ending at the same moment.
rdfs:domain
owl:inverseOf
time:endsSameAsBeginningOf
a
owl:ObjectProperty
rdfs:comment
Linking an ending event to another event beginning at the same moment.
rdfs:domain
owl:inverseOf
rdfs:isDefinedBy
rdfs:label
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
rdfs:isDefinedBy
rdfs:label
begins same as end of (en)
(de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:calculatingAfter
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event happens after second.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingAge
a
owl:FunctionalProperty
rdfs:comment
Specifying a calculated age in years for a list of something and a reference date time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Triggering in an N3 rule a backward N3 rule to calculate an age of something depending on a reference date time.
rdfs:range
time:calculatingBefore
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event happens before second.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingBeginsAfter
a
owl:ObjectProperty
rdfs:comment
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event begins after second. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
calculating begins after (en)
(de)
rdfs:range
time:calculatingBeginsBefore
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event begins before second.
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
rdfs:range
time:calculatingDuration
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its calculated duration.
Such a triple invokes in an N3 rule a backward N3 rule calculating an event's duration in premise and returning the duration. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
rdfs:range
time:calculatingDuring
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event happens during second.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
calculating during (en)
(de)
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingEndsAfter
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event ends after second.
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
calculating ends after (en)
(de)
rdfs:range
time:calculatingEndsBefore
a
owl:ObjectProperty
rdfs:comment
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event ends before second. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
calculating ends before (en)
(de)
rdfs:range
time:calculatingIncludes
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event includes second.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingOverlaps
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and events overlap each other.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingSameBeginning
a
owl:ObjectProperty
rdfs:comment
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
Linking 2 lists with each a beginning and end date time typed literal of an event, and events beginning at a same time-point. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
rdfs:range
time:calculatingSameDuration
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and events having same duration.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingSameEnd
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and events ending at a same time-point.
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple. (en)
rdfs:domain
rdfs:isDefinedBy
rdfs:label
rdfs:range
time:calculatingSameTime
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and events happen during same time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingTakesLessLongThan
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event takes less long than second.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:calculatingTakesLongerThan
a
owl:ObjectProperty
rdfs:comment
Linking 2 lists with each a beginning and end date time typed literal of an event, and first event takes longer than second.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
calculating takes longer than (en)
(de)
skos:note
Such a triple invokes in an N3 rule a backward N3 rule checking this time relation for 2 events in premise and returning the triple.
rdfs:range
time:dateLiteralToPeriod
a
owl:ObjectProperty
rdfs:comment
Linking a list with 3 literals, resp representing number of years, number of months and number of days, to a list with 2 xsd:dateTime typed literals representing a beginning and an end of a day.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
date literal to period (en)
Datumliteral zu Periode (de)
skos:note
Used in an N3 rule triple to invoke a backward N3 rule converting a date described by 3 literals to a period described by beginning and end date time, in this way explicitly stating the implicit period of a day margin.
In N3 rules universally quantified variables are declared to pick up the respective values: (?yearLiteral ?monthLiteral ?dayLiteral) time:dateLiteralToPeriod (?beginning ?end). (en)
rdfs:range
time:dateToPeriod
a
owl:ObjectProperty
rdfs:comment
Linking an xsd:date typed literal to a list with 2 xsd:dateTime typed literals representing a beginning and an end of a day.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
date to period (en)
Datum zu Periode (de)
skos:note
Used in a triple to invoke a backward N3 rule converting an xsd:date typed literal to a period described by beginning and end date time, in this way explicitly stating the implicit time period margin.
In N3 rules universally quantified variables are declared to pick up the respective values: ?date time:dateToPeriod (?beginning ?end). (en)
rdfs:range
time:endsAfter
a
owl:TransitiveProperty
rdfs:comment
Linking a later ending to an earlier ending event.
rdfs:domain
owl:inverseOf
time:endsBefore
a
owl:TransitiveProperty
rdfs:comment
Linking an earlier ending to a later ending event.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
endet vor (de)
ends before (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
rdfs:isDefinedBy
rdfs:label
ends after (en)
endet nach (de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:endsDuring
a
owl:ObjectProperty
rdfs:comment
Specifying an event during which another event ends.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
endet während (de)
ends during (en)
rdfs:range
rdfs:subPropertyOf
time:hasAge
a
owl:FunctionalProperty
rdfs:comment
Specifying an age in years of something.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Alter (de)
has age (en)
rdfs:range
time:hasAges
a
owl:FunctionalProperty
rdfs:comment
Linking a group of something to a list of its members' ages in years.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Alter (de)
has ages (en)
rdfs:range
time:hasBeginningPeriodMargin
a
owl:ObjectProperty
rdfs:comment
Linking an event to a list with 2 xsd:dateTime typed literals representing a beginning and an end of a period wherein it begins.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
rdfs:range
time:hasDateLiteralList
a
owl:ObjectProperty
rdfs:comment
Relating something to its date represented by a list of 3 literals.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Datumliteralliste (de)
has date literal list (en)
skos:note
Used in the premise of an N3-rule to convert a date literal list to the respective calendar date represented by a list of 3 literals.
rdfs:range
time:hasDateTime
a
owl:DatatypeProperty
rdfs:comment
Specifying a point in time of something with a date time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Datumzeit (de)
has date time (en)
rdfs:range
time:hasDurationDescription
a
owl:DatatypeProperty
rdfs:comment
Specifying a duration description for a temporal entity of something.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Dauerbeschreibung (de)
has duration description (en)
rdfs:range
time:hasEarliestStartDateTime
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its N3-rule-calculated earliest possible start date time, based on a set maximum event duration, in absence of the start date time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat früheste Startdatumzeit (de)
has earliest start date time (en)
rdfs:range
time:hasEndDate
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its end date.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Enddatum (de)
has end date (en)
rdfs:range
time:hasEndDateTime
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its end date time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has end date time (en)
hat Enddatumzeit (de)
rdfs:range
time:hasEndPeriodMargin
a
owl:ObjectProperty
rdfs:comment
Linking an event to a list with 2 xsd:dateTime typed literals representing a beginning and an end of a period wherein it ends.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has end period margin (en)
hat Endperiodemarginalie (de)
rdfs:range
time:hasInputDateTime
a
owl:DatatypeProperty
rdfs:comment
Relating a process to its input date-time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Eingabedatumzeit (de)
has input date time (en)
rdfs:range
time:hasLatestEndDateTime
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its N3-rule-calculated latest possible end date time, based on a set maximum event duration, in absence of the end date time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has latest end date time (en)
hat späteste Enddatumzeit (de)
rdfs:range
time:hasMaxDuration
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its maximum duration.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has maximum duration (en)
hat maximale Dauer (de)
rdfs:range
time:hasMedianAge
a
owl:DatatypeProperty,
rdfs:comment
Linking a class to the median age of its members.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has median age (en)
hat Medianalter (de)
rdfs:range
time:hasOutputDateTime
a
owl:DatatypeProperty
rdfs:comment
Relating a process to its output date-time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has output date time (en)
hat Ausgabedatumzeit (de)
rdfs:range
time:hasSameBeginningAs
a
owl:SymmetricProperty
rdfs:comment
Linking 2 events beginning on the same moment.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat denselben Beginn wie (de)
has same beginning as (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:hasSameDurationAs
a
owl:SymmetricProperty
rdfs:comment
Linking 2 events having the same duration.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat dieselbe Dauer wie (de)
has same duration as (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:hasSameEndAs
a
owl:SymmetricProperty
rdfs:comment
Linking 2 events ending on the same moment.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has same end as (en)
hat dasselbe Ende wie (de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:hasSameTimeAs
a
owl:SymmetricProperty
rdfs:comment
Linking 2 events happening at the same time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has same time as (en)
hat dieselbe Zeit wie (de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:hasSnapshotDate
a
owl:DatatypeProperty
rdfs:comment
Specifying a snapshot event's date.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
Used in N3 rules calculating with date and duration using Unix Epoch time.
A snapshot is an event with coinciding beginning and end. (en)
rdfs:range
time:hasSnapshotDateTime
a
owl:DatatypeProperty
rdfs:comment
Specifying a snapshot event's date and time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
skos:note
A snapshot is an event with coinciding beginning and end.
Used in N3 rules calculating with date time and duration using Unix Epoch time. (en)
rdfs:range
time:hasStartDate
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its start date.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has start date (en)
hat Startdatum (de)
rdfs:range
time:hasStartDateTime
a
owl:DatatypeProperty
rdfs:comment
Relating an event to its start date time.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Startdatumzeit (de)
has start date time (en)
rdfs:range
time:hasYearLiteral
a
owl:DatatypeProperty
rdfs:comment
Relating something to its year represented by a literal.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Jahrliteral (de)
has year literal (en)
skos:note
Used in the premise of an N3-rule to convert a year literal to a period of that year in the respective calendar with the start and end date represented by a list of 3 literals.
rdfs:range
time:hasYearMonthLiteralList
a
owl:ObjectProperty
rdfs:comment
Relating something to its year-month represented by a list of 2 literals.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
has year-month literal list (en)
hat Jahrmonatliteralliste (de)
skos:note
Used in the premise of an N3-rule to convert a year-month to a period of that month in that year in the respective calendar with the start and end date represented by a list of 3 literals.
rdfs:range
time:hasYearMonthPeriod
a
owl:ObjectProperty
rdfs:comment
Relating something to its year-month period.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Jahr-Monatperiode (de)
has year-month period (en)
skos:note
Through a series of N3-rules a year-month literal is converted to its year-month period with the respective calendar start and end date typed literal, and with the start and end Julian Day Number, to enable interval calculus for temporal reasoning.
rdfs:range
time:hasYearPeriod
a
owl:ObjectProperty
rdfs:comment
Relating something to its year period.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
hat Jahrperiode (de)
has year period (en)
skos:note
Through a series of N3-rules a year literal is converted to its year period with the respective calendar start and end date typed literal, and with the start and end Julian Day Number, to enable interval calculus for temporal reasoning.
rdfs:range
time:includes
a
owl:TransitiveProperty
rdfs:comment
Specifying an event happening during another event.
rdfs:domain
owl:inverseOf
time:during
a
owl:TransitiveProperty
rdfs:comment
Specifying an event during which another event happens.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
während (de)
during (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
rdfs:isDefinedBy
rdfs:label
beinhaltet (de)
includes (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:overlaps
a
owl:SymmetricProperty
rdfs:comment
Specifying an event overlapping another event.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
überlappt (de)
overlaps (en)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:takesLessLongThan
a
owl:TransitiveProperty
rdfs:comment
Linking a shorter to a longer event.
rdfs:domain
owl:inverseOf
time:takesLongerThan
a
owl:TransitiveProperty
rdfs:comment
Linking a longer to a shorter event.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
takes longer than (en)
braucht länger als (de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
rdfs:isDefinedBy
rdfs:label
takes less long than (en)
braucht weniger lang wie (de)
skos:note
Further formalized in an N3 rule by calculation in http://e-editiones.ch/ontology/eventTime_rules.n3, enabling reasoning with date/time values.
rdfs:range
rdfs:subPropertyOf
time:yearLiteralToPeriod
a
owl:ObjectProperty
rdfs:comment
Linking a literal representing number of years to a list with 2 xsd:dateTime typed literals representing a beginning and an end of a year.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
Jahrliteral zu Periode (de)
year literal to period (en)
skos:note
In N3 rules universally quantified variables are declared to pick up the respective values: ?yearLiteral time:yearLiteralToPeriod (?beginning ?end).
Used in a triple to invoke a backward N3 rule converting a literal to a period described by beginning and end date time, in this way explicitly stating the implicit period of a year margin. (en)
rdfs:range
time:yearMonthLiteralToPeriod
a
owl:ObjectProperty
rdfs:comment
Linking a list with 2 literals, resp representing number of years and number of months, to a list with 2 xsd:dateTime typed literals representing a beginning and an end of a month.
rdfs:domain
rdfs:isDefinedBy
rdfs:label
Jahrmonatliteral zu Periode (de)
year month literal to period (en)
skos:note
Used in an N3 rule triple to invoke a backward N3 rule converting 2 literals to a period described by beginning and end date time, in this way explicitly stating the implicit period of a month margin.
In N3 rules universally quantified variables are declared to pick up the respective values: (?yearLiteral ?monthLiteral) time:yearMonthLiteralToPeriod (?beginning ?end); at runtime this will generate e.g. subject ("2010" "3") and object (. (en)
rdfs:range