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This property specifies that the temporal extent of the domain instance A of E2 Temporal Entity ends before or simultaneously with the start 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^end ≤ B^start is true.

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

This property corresponds to a disjunction (logical OR) of the following Allen temporal relations (Allen, 1983): {before, meets}.

Figure 16: Temporal entity A ends before or with the start of temporal entity B. Here A is longer than B

Figure 17: Temporal entity A ends before or with the start of temporal entity B. Here A is shorter than B

This property specifies that the temporal extent of the domain instance A of E2 Temporal Entity ends before or simultaneously with the start of the temporal extent of the range instance B of E2 Temporal Entity.
In other words, if A = [Astart, Aend] and B = [Bstart, Bend], we mean Aend ≤ Bstart is true.

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

This property corresponds to a disjunction (logical OR) of the following Allen temporal relations [Allen, 1983]: {before, meets}

This property specifies that the temporal extent of the domain instance A of E2 Temporal Entity ends definitely before the start of the temporal extent of the range instance B of E2 Temporal Entity.
In other words, if A = [Astart, Aend] and B = [Bstart, Bend], we mean Aend < Bstart  is true.

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

This property corresponds to a disjunction (logical OR) of the following Allen temporal relations [Allen, 1983]: {before}

This property is transitive.

Figure 18: Temporal entity A ends before the start of temporal entity B. Here A is longer than B

Figure 19: Temporal entity A ends before the start of temporal entity B. Here A is shorter than B

This property specifies that the temporal extent of the domain instance A of E2 Temporal Entity ends 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^end ≤ B^end is true.

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

This property corresponds to a disjunction (logical OR) of the following Allen temporal relations (Allen, 1983): {before, meets, overlaps, finished by, start, equals, during, finishes}.

Figure 20: Temporal entity A ends before or with the end of temporal entity B. Here A is longer than B

Figure 21: Temporal entity A ends before or with the end of temporal entity B. Here A is shorter than B