| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [prep] the | 22093 |
|
| 2 | reference is [verb] [prep] | 74 |
|
| 3 | reference [verb] [prep] the | 27 |
|
| 4 | reference is [prep] the | 6 |
|
