| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] first stage | 182 |
|
| 2 | [prep] [art] stage in | 86 |
|
| 3 | [art] first stage in | 68 |
|
| 4 | [prep] [art] first in | 55 |
|
