| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] systems for [art] | 31 |
|
| 2 | [noun] systems for the | 28 |
|
| 3 | [noun] systems for a | 7 |
|
| 4 | [n mass] systems for [art] | 5 |
|
