| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [num] per | 183 |
|
| 2 | announcement [prep] a [adj] per | 6 |
|
| 3 | announcement [prep] a [num] [unc] | 6 |
|
| 4 | announcement [prep] [art] [num] per | 6 |
|
| 5 | announcement [prep] [art] [num] per | 6 |
|
| 6 | announcement [prep] a [num] per | 6 |
|
