| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | long [art] period of | 6 |
|
| 2 | long [art] period of | 6 |
|
| 3 | long a period of | 6 |
|
| 4 | long a period of | 6 |
|
| 5 | long [art] period of | 6 |
|
