| very | 3 | degree |
| under various environmental conditions | 2 | other |
| chemical → be → pure | 12 |
| chemical → be → hundred percent pure | 3 |
| negative | neutral | positive |
| 0.061 | 0.713 | 0.226 |
| Raw frequency | 15 |
| Normalized frequency | 0.268 |
| Modifier score | 1.000 |
| Perplexity | 476.262 |