| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must consist of [prep] [adv] | 5 |
|
| 2 | must consist of [prep] [adv] | 5 |
|
| 3 | must consist of [prep] least | 5 |
|
| 4 | must consist of [prep] least | 5 |
|
