| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is about [num] [noun] | 25 |
|
| 2 | which [is] about [num] [noun pl] | 22 |
|
| 3 | which [is] about [num] mile | 7 |
|
| 4 | which [is] about [num] miles | 7 |
|
