| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] at the office | 32 |
|
| 2 | [adv prt] at [art] office | 31 |
|
| 3 | back at [art] office | 12 |
|
| 4 | in at [art] office | 8 |
|
| 5 | up at [art] office | 7 |
|
