| on sheep | 4 | transitive-object |
| on their surrounding environment in yellowstone | 3 | location |
| upon prey numbers | 3 | other |
| wolf → have → effect | 6 |
| wolf → have → what impact | 3 |
| negative | neutral | positive |
| 0.137 | 0.714 | 0.149 |
| Raw frequency | 9 |
| Normalized frequency | 0.221 |
| Modifier score | 0.500 |
| Perplexity | 275.726 |