| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [num ord] [noun] | 2378 |
|
| 2 | at the [num ord] [noun sg] | 2245 |
|
| 3 | [prep] the [num ord] congress | 84 |
|
| 4 | at the [adj] congress | 81 |
|
| 5 | at the [num ord] congress | 47 |
|
| 6 | at [art] [num ord] congress | 47 |
|
| 7 | at the [num ord] congress | 47 |
|
| 8 | at [art] [num ord] congress | 47 |
|
