| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] system [subord] it [verb] | 8 |
|
| 2 | [art] system [subord] it [verb] | 8 |
|
| 3 | the system [subord] it [verb] | 7 |
|
| 4 | the system [subord] it [verb] | 7 |
|
| 5 | [art] system [subord] it [vb -s] | 5 |
|
