| in shape | 6 | other |
| substantially | 5 | degree |
| to reduce ghosting | 4 | purpose |
| lens → be → circular | 14 |
| lens → have → circular aperture | 12 |
| lens → have → circular shape | 3 |
| negative | neutral | positive |
| 0.095 | 0.777 | 0.128 |
| Raw frequency | 29 |
| Normalized frequency | 0.365 |
| Modifier score | 1.000 |
| Perplexity | 275.908 |