| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] first | 781 |
|
| 2 | at the first | 758 |
|
| 3 | at the first | 758 |
|
| 4 | at a first | 23 |
|
| 5 | at a first | 23 |
|
