| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | period of about [adj] | 52 |
|
| 2 | period of about [adj] | 52 |
|
| 3 | period of about [num] | 52 |
|
| 4 | period of about five | 5 |
|
| 5 | period of about five | 5 |
|
