| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] of [art] key areas [prep] | 7 |
|
| 2 | [num] of [art] key areas [prep] | 5 |
|
| 3 | one of [art] key areas [prep] | 5 |
|
| 4 | one of [art] key areas [prep] | 5 |
|
| 5 | of [art] key areas [prep] [noun] | 5 |
|
