| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | research and [noun sg] [noun] | 446 |
|
| 2 | [noun] and [noun sg] service | 335 |
|
| 3 | research and [noun sg] [noun sg] | 308 |
|
| 4 | [noun sg] and [noun sg] service | 260 |
|
| 5 | research and [noun sg] service | 13 |
|
| 6 | research [conj] [noun sg] service | 6 |
|
| 7 | research and [noun sg] service | 6 |
|
| 8 | research and [noun] service | 6 |
|
| 9 | research [coord] [noun sg] service | 6 |
|
| 10 | research and [noun sg] service | 6 |
|
