| between september | 4 | temporal |
| at new moon | 4 | temporal |
| in winter | 3 | temporal |
| sky → be → darkest | 22 |
| sky → be at → darkest | 12 |
| sky → be → the darkest | 6 |
| sky → be among → darkest | 3 |
| negative | neutral | positive |
| 0.186 | 0.484 | 0.330 |
| Raw frequency | 43 |
| Normalized frequency | 0.369 |
| Modifier score | 0.500 |
| Perplexity | 254.172 |