| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which may [be] obtained [prep] | 6 |
|
| 2 | which may be obtained [prep] | 6 |
|
| 3 | which may be obtained [prep] | 6 |
|
| 4 | which may [be] obtained [prep] | 6 |
|
