| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] contract for [art] | 154 |
|
| 2 | [art] contract [is] [art] | 21 |
|
| 3 | [art] contract [is] for | 17 |
|
| 4 | contract [is] for [art] | 11 |
|
