| Typicality: | 0.532 |
| Saliency: | 0.494 |
| naturally | 17 | manner |
| for many reasons | 6 | cause |
| sometimes | 5 | temporal |
| tooth → darken over → time | 97 |
| tooth → be darkened over → time | 19 |
| tooth → darkened over → time | 8 |
| tooth → darken with → time | 7 |
| tooth → darken over → year | 5 |
| negative | neutral | positive |
| 0.365 | 0.563 | 0.072 |
| Raw frequency | 136 |
| Normalized frequency | 0.494 |
| Modifier score | 0.718 |
| Perplexity | 30.521 |