| much | 10 | degree |
| on other body parts | 5 | location |
| compared with skin | 3 | other |
| skin → be → tougher | 57 |
| skin → be → tougher than that | 3 |
| negative | neutral | positive |
| 0.235 | 0.592 | 0.173 |
| Raw frequency | 60 |
| Normalized frequency | 0.386 |
| Modifier score | 0.800 |
| Perplexity | 278.619 |