| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was held at the [noun sg] of | 11 |
|
| 2 | [was/were] held at the [noun sg] of | 11 |
|
| 3 | [was/were] held at the [noun sg] of | 11 |
|
| 4 | [was/were] held at the end of | 6 |
|
