| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] system [is] [conj] it | 10 |
|
| 2 | [art] system is [conj] it | 10 |
|
| 3 | [art] system [is] that it | 9 |
|
| 4 | [art] system [is] that it | 9 |
|
| 5 | [art] system [is] [that] it | 9 |
|
| 6 | the system [is] [conj] it | 8 |
|
