| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are held in the | 30 |
|
| 2 | are held by the | 20 |
|
| 3 | are held on the | 15 |
|
| 4 | are held at the | 13 |
|
| 5 | are held throughout the | 6 |
|
