| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] hour | 2054 |
|
| 2 | [prep] [art] [art] | 1777 |
|
| 3 | [art] hour [art] | 113 |
|
| 4 | [prep] hour [art] | 42 |
|
