| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have led [prep] [art] | 10 |
|
| 2 | which have led to [art] | 10 |
|
| 3 | which have led to [art] | 10 |
|
| 4 | which have led [prep] [art] | 10 |
|
| 5 | which have led [prep] a | 5 |
|
