| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a heads [prep] [noun sg] | 10 |
|
| 2 | [prep] a heads [prep] [noun] | 10 |
|
| 3 | [prep] a heads [prep] agreement | 8 |
|
| 4 | [prep] a heads [prep] agreement | 8 |
|
