| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] of [noun] [noun] for | 1977 |
|
| 2 | level of [noun] [noun] [prep] | 209 |
|
| 3 | level of [noun] [noun] [prep] | 209 |
|
| 4 | level of [noun] [noun] for | 21 |
|
| 5 | level [prep] [noun] [noun] for | 21 |
|
| 6 | level of [noun] [noun] for | 21 |
|
| 7 | level [prep] [noun] [noun] for | 21 |
|
