| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] [noun] of [noun] | 10643 |
|
| 2 | at [art] [noun sg] of [noun] | 10024 |
|
| 3 | [prep] [art] level of [noun] | 881 |
|
| 4 | [prep] [art] level of [noun] | 881 |
|
| 5 | at [art] level [prep] [noun] | 237 |
|
| 6 | at [art] level of [noun] | 233 |
|
| 7 | at [art] level of [noun] | 227 |
|
| 8 | at [art] level of [noun] | 227 |
|
