| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] and a [noun] | 1621 |
|
| 2 | [adj] system and [noun] | 159 |
|
| 3 | system and a [noun] | 43 |
|
| 4 | [adj] system and a | 32 |
|
| 5 | [adj] system a [noun] | 19 |
|
