| rotationally | 8 | degree |
| for a given focal distance | 6 | other |
| radially | 5 | degree |
| lens → be → symmetric | 15 |
| lens → be → symmetrical | 11 |
| lens → be not → symmetric | 3 |
| negative | neutral | positive |
| 0.116 | 0.714 | 0.170 |
| Raw frequency | 29 |
| Normalized frequency | 0.365 |
| Modifier score | 0.500 |
| Perplexity | 140.728 |