| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a six month | 6 |
|
| 2 | over a six month [noun] | 7 |
|
| 3 | over a six month [noun sg] | 7 |
|
| 4 | over a six month period | 6 |
|
| 5 | over a six month period | 6 |
|
