| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pos pn] [noun] [noun sg] system for | 8 |
|
| 2 | [pos pn] [noun] [noun] system for | 8 |
|
| 3 | its [noun] [noun] system for | 8 |
|
| 4 | [pos pn] [noun] [noun] system for | 7 |
|
| 5 | [pos pn] [noun sg] [noun] system for | 7 |
|
