| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] system [be] | 242 |
|
| 2 | [art] system [be] the | 24 |
|
| 3 | [prep] [art] system the | 10 |
|
| 4 | [prep] [art] [be] the | 5 |
|
