| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] system that have | 20 |
|
| 2 | [art] system that has | 14 |
|
| 3 | a system that have | 12 |
|
| 4 | a system that have | 12 |
|
| 5 | the system that have | 8 |
|
| 6 | the system that have | 8 |
|
| 7 | [art] system that had | 6 |
|
