| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] [adj] [noun sg] | 23814 |
|
| 2 | operate [art] [adj] [noun sg] | 36 |
|
| 3 | operate at [art] [adj] | 11 |
|
| 4 | operate at [art] [noun sg] | 8 |
|
