http://localhost:4523/sparql?query=define%20sql%3Adescribe-mode%20%22CBD%22%20%20DESCRIBE%20%3Chttp%3A%2F%2Ferlangen-crm.org%2Fcurrent%2FP4_has_time-span%3E&output=application%2Fatom%2Bxml2024-03-29T10:24:54.864229ZOData Service and Descriptor Documenthttp://erlangen-crm.org/current/P4_has_time-span2024-03-29T10:24:54.864229ZScope note:
This property describes the temporal confinement of an instance of an E2 Temporal Entity.
The related E52 Time-Span is understood as the real Time-Span during which the phenomena were active, which make up the temporal entity instance. It does not convey any other meaning than a positioning on the "time-line" of chronology. The Time-Span in turn is approximated by a set of dates (E61 Time Primitive). A temporal entity can have in reality only one Time-Span, but there may exist alternative opinions about it, which we would express by assigning multiple Time-Spans. Related temporal entities may share a Time-Span. Time-Spans may have completely unknown dates but other descriptions by which we can infer knowledge.
Examples:
- the Yalta Conference (E7) has time-span Yalta Conference time-span (E52)
In First Order Logic:
P4(x,y) ⊃ E2(x)
P4(x,y) ⊃ E52(y)P4P4 has time-span