| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [adj] [noun] | 2563 |
|
| 2 | system [vb past] [adj] [noun] | 40 |
|
| 3 | system which [vb past] [adj] | 33 |
|
| 4 | system which [vb past] [noun] | 20 |
|
| 5 | system which [adj] [noun] | 7 |
|
