| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] [adj] over a [adj] period | 5 |
|
| 2 | [n mass] [num] over a [adj] period | 5 |
|
| 3 | [n mass] million over a [adj] period | 5 |
|
| 4 | [n mass] million over a [adj] period | 5 |
|
