| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] first stage in | 18 |
|
| 2 | [prep] the first stage in | 14 |
|
| 3 | as [art] first stage in | 13 |
|
| 4 | [prep] a first stage in | 7 |
|
