| most notably | 3 | degree |
| to a lake’s color change | 3 | transitive-object |
| to helping myoglobin | 2 | purpose |
| iron → be → key | 9 |
| iron → be → the key | 3 |
| negative | neutral | positive |
| 0.061 | 0.628 | 0.311 |
| Raw frequency | 12 |
| Normalized frequency | 0.255 |
| Modifier score | 0.500 |
| Perplexity | 145.237 |