| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a period [prep] [noun sg] | 476 |
|
| 2 | [noun sg] [prep] a period [prep] | 461 |
|
| 3 | [noun sg] [prep] period [prep] [noun sg] | 38 |
|
| 4 | [noun sg] [prep] a [prep] [noun sg] | 8 |
|
| 5 | [noun sg] a period [prep] [noun sg] | 5 |
|
