| sometimes | 12 | temporal |
| during the spring months | 8 | temporal |
| during the treatment process | 8 | temporal |
| chemical → be → added | 206 |
| chemical → be added to → the mix | 4 |
| negative | neutral | positive |
| 0.300 | 0.629 | 0.071 |
| Raw frequency | 210 |
| Normalized frequency | 0.707 |
| Modifier score | 0.462 |
| Perplexity | 40.085 |