| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which occurred [prep] the | 60 |
|
| 2 | which occurred in [art] | 29 |
|
| 3 | which occurred [prep] a | 10 |
|
| 4 | which occurred at [art] | 8 |
|
| 5 | which occurred during [art] | 7 |
|
| 6 | which occurred on [art] | 6 |
|
| 7 | which occurred after [art] | 5 |
|
