@keywords is, of, a.
@prefix : <time#>.

@prefix cyc: <http://sw.opencyc.org/2009/04/07/concept/en/>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix str: <http://www.w3.org/2000/10/swap/string#>.
@prefix s: <http://www.w3.org/2000/01/rdf-schema#> .

cyc:after a owl:TransitiveProperty;
  s:subPropertyOf owl:differentFrom;
  s:domain cyc:TimePoint;
  s:range cyc:TimePoint.

cyc:simultaneousWith s:subPropertyOf owl:sameAs;
  s:domain cyc:TimePoint;
  s:range cyc:TimePoint.

cyc:TemporalThing s:subClassOf
  [ owl:onProperty cyc:startingPoint; owl:minCardinality 1 ],
  [ owl:onProperty cyc:endingPoint; owl:minCardinality 1 ].
cyc:startingPoint s:domain cyc:TemporalThing; s:range cyc:TimePoint.
cyc:endingPoint s:domain cyc:TemporalThing; s:range cyc:TimePoint.

# you'd think this could be reduced to primitives, but
# without some sort of 'contains' relationship between
# TemporalThings and TimePoints, I don't see how.
cyc:temporallyDisjoint owl:propertyDisjointWith cyc:temporallyIntersects.

cyc:temporallyIntersects a owl:SymmetricProperty;
  s:domain cyc:TemporalThing;
  s:range cyc:TemporalThing.
cyc:temporallyDisjoint a owl:SymmetricProperty;
  s:domain cyc:TemporalThing;
  s:range cyc:TemporalThing.

cyc:temporallySubsumes a owl:TransitiveProperty;
  s:subPropertyOf cyc:temporallyIntersects,
    [ owl:inverseOf cyc:endsNoLaterThanEndingOf ],
    [ owl:inverseOf cyc:startsNoEarlierThanStartingOf ].

cyc:endsNoLaterThanEndingOf a owl:TransitiveProperty;
  s:domain cyc:TemporalThing;
  s:range cyc:TemporalThing.

cyc:startsNoEarlierThanStartingOf a owl:TransitiveProperty;
  s:domain cyc:TemporalThing;
  s:range cyc:TemporalThing.

{
 ?TOBJ1 cyc:endsNoLaterThanEndingOf [ xsd:date ?TMAX ].
 ?TOBJ2 cyc:startsNoEarlierThanStartingOf [ xsd:date ?TMIN ].
 ?TMAX str:lessThan ?TMIN.
} => { ?TOBJ1 cyc:temporallyDisjoint ?TOBJ2 }.

cyc:dateOfDeath s:subPropertyOf
#... cyc:objectEndingDate.
# cyc:objectEndingDate s:subPropertyOf cyc:endingDate.
# cyc:endingDate s:subPropertyOf ...
 cyc:endsNoLaterThanEndingOf.

cyc:publicationDate_IBO s:subPropertyOf
# ... cyc:startingDate. # a bit of a stretch
# cyc:startingDate s:subPropertyOf ...
cyc:startsNoEarlierThanStartingOf.


# the performer and perceived thing of an event temporally subsume the event.
# maybe a bit of a stretch for performer.
#cyc:perceivedThings s:subPropertyOf [ owl:inverseOf cyc:temporallySubsumes ].
#cyc:performer s:subPropertyOf [ owl:inverseOf cyc:temporallySubsumes ].
cyc:perceives s:subPropertyOf cyc:temporallyIntersects.

########## need these? not today...
# startingPoint is a function over TemporalThing
#
# { ?THING cyc:startingDate ?DATE; cyc:startingPoint ?WHEN }
#  => { ?DATE cyc:temporallySubsumes ?WHEN }.