| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] few hours [prep] a | 7 |
|
| 2 | [prep] a few hours [prep] a | 7 |
|
| 3 | for [art] few hours [prep] a | 5 |
|
| 4 | for [art] few hours [prep] a | 5 |
|
