| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which is the | 138 |
|
| 2 | of which is the | 98 |
|
| 3 | to which is the | 11 |
|
| 4 | about which is the | 6 |
|
| 5 | on which is the | 5 |
|
