| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a [noun] | 150210 |
|
| 2 | [prep] a prolonged [noun] | 122 |
|
| 3 | [noun sg] [prep] prolonged [noun] | 69 |
|
| 4 | [noun sg] [prep] a prolonged | 49 |
|
