| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | two types of [noun sg] [prep] | 24 |
|
| 2 | two types of [noun] in | 17 |
|
| 3 | two types of [noun pl] [prep] | 12 |
|
| 4 | two types of [noun] to | 5 |
|
