| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | believed to be [adj] to | 22 |
|
| 2 | believed to [be] [adj] to | 22 |
|
| 3 | believed to [be] [adj] to | 22 |
|
| 4 | believed to be [adj] to | 22 |
|
| 5 | believed to [be] due to | 8 |
|
