| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun prp] [num] [noun] [noun] | 1279 |
|
| 2 | conference [prep] [noun prp] [num] [noun] | 23 |
|
| 3 | conference [prep] [noun prp] [noun] [noun] | 21 |
|
