| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | occur at [art] rate | 7 |
|
| 2 | occur at [art] rate | 7 |
|
| 3 | occur at a rate | 7 |
|
| 4 | occur at a rate | 7 |
|
| 5 | occurring at [art] rate | 5 |
|
