| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb past] [verb] a [n mass] of | 5 |
|
| 2 | [adv] [vb past] [verb] a [n mass] of | 5 |
|
| 3 | [adv] [vb past] [verb] a [n mass] [prep] | 5 |
|
| 4 | [adv] [vb past] [verb] a [n mass] [prep] | 5 |
|
