| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | levels [coord] [noun sg] | 78 |
|
| 2 | levels and [noun sg] | 71 |
|
| 3 | levels and [noun sg] | 71 |
|
| 4 | levels [subord] [noun sg] | 8 |
|
| 5 | levels than [noun sg] | 5 |
|
| 6 | levels than [noun sg] | 5 |
|
