| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [be] at the centre of | 8 |
|
| 2 | which [be] at the centre [prep] | 8 |
|
| 3 | which [be] at the centre of | 8 |
|
| 4 | which [be] at the centre [prep] | 8 |
|
