Table 1 Translation of Allen’s interval relations between two intervals I and J into conjunctions of point relations between I−, I+, J−, and J+
From: Allen’s Relations
I− J− | I− J+ | I+J− | I+ J+ | |
|---|---|---|---|---|
After | > | |||
Before | < | |||
Meets | = | |||
Met_by | = | |||
During | > | < | ||
Contains | < | > | ||
Equal | = | = | ||
Finishes | > | = | ||
Finished_by | < | = | ||
Starts | = | < | ||
Started_by | = | > | ||
Overlaps | < | > | < | |
Overlapped_by | > | < | > |