| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun sg] [noun sg] at [noun prp] | 709 |
|
| 2 | a senior [noun sg] at [noun prp] | 18 |
|
| 3 | senior [noun sg] [noun sg] at [noun prp] | 16 |
|
| 4 | a senior [noun sg] [noun sg] at | 13 |
|
