| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [prep] the period [conj] | 6 |
|
| 2 | [det] [prep] [art] period [conj] | 6 |
|
| 3 | [det] of [art] period [conj] | 5 |
|
| 4 | [det] of [art] period [conj] | 5 |
|
