| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | open up the [adj] system | 6 |
|
| 2 | open [adv prt] the [adj] system | 6 |
|
| 3 | open [adv prt] the [adj] system | 6 |
|
| 4 | open [adv prt] the political system | 5 |
|
| 5 | open [adv prt] the political system | 5 |
|
