| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] source of [noun] | 1566 |
|
| 2 | source of [noun] for | 319 |
|
| 3 | [adj] of [noun] for | 235 |
|
| 4 | [adj] source [noun] for | 6 |
|
