| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] known [conj] | 228 |
|
| 2 | [coord] it is [adv] [conj] | 114 |
|
| 3 | [coord] it is [adv] known | 45 |
|
| 4 | [coord] it is known [conj] | 21 |
|
