| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [num] [noun] [prep] [num] | 116 |
|
| 2 | a [num] [noun] period [prep] | 48 |
|
| 3 | a [noun] period [prep] [num] | 21 |
|
| 4 | [num] [noun] period [prep] [num] | 12 |
|
