Domain:

crm:E2 Temporal Entity

Range:

crm:E2 Temporal Entity

Quantification:

0,n:0,n

Superproperty of:

• crm:E2 Temporal Entity → crm:P174 starts before the end of (ends after the start of) → crm:E2 Temporal Entity

Scope note:

This property specifies that the temporal extent of the domain instance A of E2 Temporal Entity starts before or simultaneously with the end of the temporal extent of the range instance B of E2 Temporal Entity.

In other words, if A = [A^start, A^end] and B = [B^start, B^end], we mean A^start ≤ B^end is true.

This property is part of the set of temporal primitives P173 – P176, P182 – P185.

This property corresponds to the disjunction (logical OR) of the following Allen temporal relations (Allen, 1983): {before, meets, met-by, overlaps, starts, started-by, contains, finishes, finished-by, equals, during, overlapped by}.

This property is not transitive.

Figure 8: Temporal entity A starts before or with the end of temporal entity B. Here A is longer than B

Figure 9: Temporal entity A starts before or with the end of temporal entity B. Here A is shorter than B

Examples:

The legendary run from Marathon to Athens 490BC (E7) starts before or with the end of The Battle of Marathon 490BC (E7).

LMIIB (E4) P173i ends after or with the start of the Tutankhamun period (1332-1323 B.C.E.) (E4). [Evidence for this is provided by the scarab seal found at Poros in a context of LMIIB. The scarab belongs to the type “nh.s n Jmn”. During the Akhenaten period he production of these scarab seals stopped (the name of Amun is not referred to during his reign). So the scarab could not have been produced before the Tutankhamun period and is probably a later production.] (Karetsou, 2000)

In First Order Logic:

• P173(x,y) ⊃ E2(x)
• P173(x,y) ⊃ E2(y)