| very | 5 | degree |
| in these highly polluted situations | 4 | location |
| in the broad light of day | 4 | temporal |
| river → be → dark | 31 |
| river → run → dark | 6 |
| river → turn → dark | 5 |
| river → become → dark | 4 |
| negative | neutral | positive |
| 0.366 | 0.493 | 0.141 |
| Raw frequency | 46 |
| Normalized frequency | 0.473 |
| Modifier score | 0.867 |
| Perplexity | 232.106 |