Allen’s Relations. Table 1 Translation of Allen's interval relations between two intervals I and J into conjunctions of point relations between I−, I+, J−, 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 | > | < |
| > |