| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] which [vb past] been [prep] | 6 |
|
| 2 | [prep] [noun] which [vb past] been [prep] | 6 |
|
| 3 | [prep] [noun] which [vb past] been [prep] | 6 |
|
| 4 | [prep] [noun] which had been [prep] | 6 |
|
