| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | refer to at [art] [noun sg] | 12 |
|
| 2 | refer [prep] at [art] [noun sg] | 12 |
|
| 3 | refer to at [art] [noun sg] | 12 |
|
| 4 | refer [prep] at the [noun sg] | 11 |
|
| 5 | referred [prep] at [art] [noun sg] | 9 |
|
