| to the public | 10 | transitive-object |
| to contamination | 5 | cause |
| before protection | 5 | temporal |
| spring → be → open | 45 |
| spring → be → opened | 4 |
| negative | neutral | positive |
| 0.170 | 0.522 | 0.308 |
| Raw frequency | 49 |
| Normalized frequency | 0.502 |
| Modifier score | 0.900 |
| Perplexity | 329.871 |