| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and a [adj] [noun sg] | 16240 |
|
| 2 | system and [adj] [noun sg] | 155 |
|
| 3 | system and a [adj] | 40 |
|
| 4 | system and a [noun sg] | 38 |
|
| 5 | system a [adj] [noun sg] | 20 |
|
