| very | 10 | degree |
| in controlling vector-borne diseases | 4 | transitive-object |
| for testing for west nile virus | 4 | purpose |
| trap → be → useful | 33 |
| trap → be of → use | 5 |
| negative | neutral | positive |
| 0.139 | 0.520 | 0.342 |
| Raw frequency | 38 |
| Normalized frequency | 0.506 |
| Modifier score | 0.650 |
| Perplexity | 291.259 |