| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be happening [prep] [art] economy | 8 |
|
| 2 | [be] happening [prep] [art] economy | 8 |
|
| 3 | [is] happening [prep] [art] economy | 5 |
|
| 4 | is happening [prep] [art] economy | 5 |
|
