| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] system [vb -s] [verb] a | 7 |
|
| 2 | [adj] [noun] system [vb -s] [verb] a | 7 |
|
| 3 | [noun] system [vb -s] [verb] a [adj] | 9 |
|
| 4 | [noun] system [vb -s] [verb] a [adj] | 8 |
|
