| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [art] problem that | 27 |
|
| 2 | and [art] problem that | 27 |
|
| 3 | and the problem that | 25 |
|
| 4 | and the problem that | 25 |
|
| 5 | and [art] problems that | 22 |
|
| 6 | and [art] problem that | 5 |
|
