| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be held at [art] [adj] [noun pl] | 16 |
|
| 2 | be held at [art] [adj] [noun pl] | 14 |
|
| 3 | be held at [art] scientific [noun pl] | 7 |
|
| 4 | be held at [art] scientific [noun pl] | 7 |
|
| 5 | be held at [art] [noun] [noun pl] | 5 |
|
| 6 | be held at [art] [noun pl] [noun] | 7 |
|
| 7 | be held at [art] [noun pl] [noun sg] | 6 |
|
