| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | by [art] [adj] [noun] ' union | 7 |
|
| 2 | by [art] [adj] [noun] ' union | 6 |
|
| 3 | [vb pp] by [art] [noun] ' union | 8 |
|
| 4 | [verb] by [art] [noun] ' union | 8 |
|
