| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which was [verb] on [num] [noun] | 25 |
|
| 2 | which was [vb pp] on [num] [noun] | 24 |
|
| 3 | which was [verb] on [num] [noun prp] | 21 |
|
| 4 | which was [verb] on 1 [noun] | 5 |
|
