| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is obvious that [adj] | 33 |
|
| 2 | it is obvious that [noun] | 30 |
|
| 3 | is obvious that [adj] [noun] | 22 |
|
| 4 | it is that [adj] [noun] | 17 |
|
