| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [art] period [prep] | 63 |
|
| 2 | [is] [art] period [prep] | 62 |
|
| 3 | is [art] period [prep] | 56 |
|
| 4 | [is] [art] period of | 47 |
|
| 5 | [is] a period [prep] | 41 |
|
| 6 | [is] a period [prep] | 41 |
|
| 7 | [is] the period [prep] | 21 |
|
| 8 | [is] the period [prep] | 21 |
|
| 9 | 's [art] period [prep] | 7 |
|
| 10 | [is] [art] period during | 5 |
|
