| very | 49 | degree |
| for up to two years | 13 | temporal |
| in catching the occasional invader | 10 | transitive-object |
| trap → be → effective | 191 |
| trap → be → most effective | 26 |
| trap → be → the most effective | 5 |
| trap → be → effective way | 4 |
| negative | neutral | positive |
| 0.109 | 0.490 | 0.401 |
| Raw frequency | 226 |
| Normalized frequency | 0.862 |
| Modifier score | 0.625 |
| Perplexity | 53.578 |