| for high image quality | 7 | purpose |
| in other instances | 4 | temporal |
| similarly | 2 | degree |
| lens → be → aspheric | 16 |
| lens → include → aspheric element | 5 |
| lens → be → aspherical | 4 |
| negative | neutral | positive |
| 0.039 | 0.735 | 0.226 |
| Raw frequency | 25 |
| Normalized frequency | 0.341 |
| Modifier score | 1.000 |
| Perplexity | 41.348 |