| alternatively | 4 | manner |
| from other lower index of refraction | 4 | other |
| in some cases | 3 | temporal |
| lens → be made of → material | 19 |
| lens → be made from → material | 14 |
| lens → comprise → material | 10 |
| lens → be made of → a lens material | 4 |
| lens → be composed of → material | 4 |
| lens → be formed → material | 3 |
| negative | neutral | positive |
| 0.049 | 0.842 | 0.109 |
| Raw frequency | 54 |
| Normalized frequency | 0.465 |
| Modifier score | 0.500 |
| Perplexity | 159.787 |