| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the period [adv prt] to the [adj] | 6 |
|
| 2 | the period [adv prt] to the [adj] | 6 |
|
| 3 | [art] period [adv prt] to the [adj] | 6 |
|
| 4 | [art] period [adv prt] to the [adj] | 6 |
|
| 5 | [art] period up to the [adj] | 5 |
|
