| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [prep] a [adj] | 54 |
|
| 2 | has been identified [prep] a | 20 |
|
| 3 | been identified [prep] a [adj] | 20 |
|
| 4 | has been identified [prep] [adj] | 5 |
|
