| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] while working at the [noun] | 7 |
|
| 2 | while working at the [noun] [noun] | 7 |
|
| 3 | while working at the [noun sg] [noun] | 5 |
|
| 4 | while working at the [noun] [noun] | 7 |
|
| 5 | while working at the [noun] [noun sg] | 6 |
|
