| during these 30 minutes | 5 | temporal |
| after being exposed to the acids | 3 | temporal |
| enamel → be → softer | 18 |
| enamel → become → softer | 5 |
| negative | neutral | positive |
| 0.371 | 0.553 | 0.075 |
| Raw frequency | 23 |
| Normalized frequency | 0.555 |
| Modifier score | 0.500 |
| Perplexity | 160.044 |