| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] period and | 64 |
|
| 2 | [prep] the period and | 52 |
|
| 3 | of [art] period and | 23 |
|
| 4 | of [art] period and | 23 |
|
| 5 | for [art] period and | 13 |
|
| 6 | for [art] period and | 13 |
|
| 7 | [prep] a period and | 12 |
|
| 8 | over [art] period and | 7 |
|
| 9 | over [art] period and | 7 |
|
| 10 | in [art] period and | 6 |
|
| 11 | in [art] period and | 6 |
|
| 12 | during [art] period and | 5 |
|
| 13 | during [art] period and | 5 |
|
