| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] thought to have [been] [art] [adj] | 5 |
|
| 2 | [is] thought to have be [art] [adj] | 5 |
|
| 3 | is thought to have [be] [art] [adj] | 5 |
|
| 4 | [is] thought to have been [art] [adj] | 5 |
|
