| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [num] [noun sg] | 3270 |
|
| 2 | based [prep] a [noun sg] | 723 |
|
| 3 | based [prep] [num] [noun sg] | 44 |
|
| 4 | based [prep] a [num] | 20 |
|
