| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] had led to a | 8 |
|
| 2 | [Wh det] had led [prep] a | 8 |
|
| 3 | [Wh det] had led to a | 8 |
|
| 4 | which had led [prep] a | 8 |
|
