| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] first [prep] | 752 |
|
| 2 | [prep] [art] stage [prep] | 470 |
|
| 3 | [art] first stage [prep] | 292 |
|
| 4 | [prep] [art] first stage | 161 |
|
