| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | obtained from [noun] | 392 |
|
| 2 | [verb] from sigma | 18 |
|
| 3 | [vb pp] from sigma | 18 |
|
| 4 | obtained [prep] sigma | 6 |
|
| 5 | obtain from sigma | 6 |
|
| 6 | obtained from sigma | 6 |
|
| 7 | obtained [prep] sigma | 6 |
|
