| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a long period | 519 |
|
| 2 | [art] long period | 434 |
|
| 3 | [art] longer period | 119 |
|
| 4 | the long period | 53 |
|
| 5 | [art] longest period | 19 |
|
