| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [num] per [unc] | 2070 |
|
| 2 | [n mass] [num] per [unc] | 67 |
|
| 3 | [n mass] and [num] [unc] | 32 |
|
| 4 | [n mass] and [num] per | 27 |
|
