| for their translucence | 3 | purpose |
| membrane → be → required | 12 |
| membrane → be → necessary | 8 |
| membrane → be → desired | 4 |
| membrane → be → recommended | 4 |
| membrane → be → desirable | 3 |
| negative | neutral | positive |
| 0.145 | 0.686 | 0.169 |
| Raw frequency | 31 |
| Normalized frequency | 0.442 |
| Modifier score | 0.500 |
| Perplexity | 292.587 |