| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun sg] [prep] an [adj] [noun] | 1419 |
|
| 2 | [prep] [noun sg] [prep] an [adj] [noun sg] | 1375 |
|
| 3 | [prep] [noun sg] [prep] [art] [adj] period | 181 |
|
| 4 | [prep] [noun sg] [prep] [art] [adj] period | 181 |
|
| 5 | [prep] [noun sg] [prep] a [adj] period | 101 |
|
| 6 | [prep] [noun] [prep] an [adj] period | 20 |
|
| 7 | [prep] [noun sg] [prep] an [adj] period | 16 |
|
| 8 | [prep] [noun sg] [prep] an [adj] period | 16 |
|
| 9 | [prep] [noun sg] [prep] an [adj] period | 16 |
|
