| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] described [prep] a [adj] | 16 |
|
| 2 | has been described [prep] a [adj] | 16 |
|
| 3 | has [been] described as a [adj] | 13 |
|
| 4 | has [been] described as a [adj] | 13 |
|
