| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which [vb past] [adj] [noun] | 1352 |
|
| 2 | system which [verb] [adj] [noun] | 67 |
|
| 3 | system [pron] [vb past] [adj] [noun] | 23 |
|
