| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a | 753779 |
|
| 2 | [prep] a | 753768 |
|
| 3 | upon [art] | 7834 |
|
| 4 | upon [art] | 7834 |
|
| 5 | upon a | 1596 |
|
| 6 | upon a | 1338 |
|
