| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] the first level [noun] [prep] | 5 |
|
| 2 | [prep] the first level certificate [prep] | 5 |
|
| 3 | for the first level [noun] [prep] | 5 |
|
| 4 | [prep] the first level [noun] in | 5 |
|
| 5 | [prep] the first level [noun sg] [prep] | 5 |
|
| 6 | [prep] the first level certificate [prep] | 5 |
|
| 7 | [prep] the first level [noun] in | 5 |
|
