| due to this evolutionary history | 12 | cause |
| to a parrot’s health | 4 | transitive-object |
| equally | 4 | degree |
| flight → be → important | 17 |
| flight → be → vital | 8 |
| flight → be → critical | 4 |
| flight → be → crucial | 4 |
| negative | neutral | positive |
| 0.102 | 0.516 | 0.382 |
| Raw frequency | 33 |
| Normalized frequency | 0.325 |
| Modifier score | 1.000 |
| Perplexity | 152.211 |