| not at all | 8 | degree |
| due to recession of the gums | 7 | cause |
| because of exotic invasive earthworms | 6 | cause |
| root → be → exposed | 142 |
| root → become → exposed | 34 |
| root → becomes → exposed | 3 |
| root → get → exposed | 3 |
| negative | neutral | positive |
| 0.394 | 0.533 | 0.074 |
| Raw frequency | 182 |
| Normalized frequency | 0.735 |
| Modifier score | 0.600 |
| Perplexity | 323.147 |