| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] is essential for [art] [adj] | 8 |
|
| 2 | [pers pn] is essential for [art] [adj] | 8 |
|
| 3 | [pers pn] is essential for [art] [adj] | 8 |
|
| 4 | [pers pn] is essential for [art] [adj] | 8 |
|
| 5 | it is essential for [art] [adj] | 8 |
|
| 6 | [pers pn] is essential for the [adj] | 7 |
|
| 7 | [pers pn] is essential for the [adj] | 7 |
|
