| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that only [num] per [no cls] | 84 |
|
| 2 | showed that [num] per [no cls] | 78 |
|
| 3 | showed that only [num] [no cls] | 16 |
|
| 4 | showed that only [num] per | 15 |
|
