| very | 13 | degree |
| according to astronomy | 7 | other |
| comparatively | 2 | degree |
| moon → be → rare | 19 |
| moon → be → rare sight | 7 |
| moon → be → rare occurrence | 3 |
| negative | neutral | positive |
| 0.043 | 0.591 | 0.366 |
| Raw frequency | 29 |
| Normalized frequency | 0.330 |
| Modifier score | 0.500 |
| Perplexity | 148.640 |