| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun sg] [prep] | 326033 |
|
| 2 | source [prep] [noun sg] | 4033 |
|
| 3 | source [noun sg] [prep] | 112 |
|
| 4 | source [prep] [prep] | 5 |
|
