| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [noun sg] over a long [noun sg] | 9 |
|
| 2 | [noun] [noun sg] over a long period | 8 |
|
| 3 | [noun sg] [noun sg] over a long [noun] | 8 |
|
| 4 | [noun] [noun sg] over a long period | 8 |
|
