| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is [vb pp] at [noun] | 48 |
|
| 2 | which [is] [vb pp] at [noun prp] | 19 |
|
| 3 | which [is] [vb pp] at [noun sg] | 12 |
|
| 4 | which [is] based at [noun] | 12 |
|
| 5 | which [is] [vb pp] at [n mass] | 11 |
|
| 6 | which [is] [vb pp] at [noun pl] | 6 |
|
| 7 | which [is] estimated at [noun] | 5 |
|
