| in the event | 4 | temporal |
| substantially | 3 | degree |
| very | 2 | degree |
| membrane → be → rigid | 15 |
| membrane → become → rigid | 6 |
| membrane → be → more rigid | 4 |
| membrane → become → more rigid | 4 |
| negative | neutral | positive |
| 0.395 | 0.521 | 0.084 |
| Raw frequency | 29 |
| Normalized frequency | 0.430 |
| Modifier score | 0.400 |
| Perplexity | 278.760 |