| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] public relations | 29 |
|
| 2 | a [adj] public relations | 29 |
|
| 3 | a [adj] public relations | 21 |
|
| 4 | an [adj] public relations | 8 |
|
| 5 | a good public relations | 6 |
|
| 6 | a good public relations | 6 |
|
