| from infestation | 12 | other |
| usually | 8 | degree |
| completely | 5 | degree |
| pipe → be → safe | 113 |
| pipe → be safe to → use | 3 |
| pipe → ensure → safety | 3 |
| pipe → be kept → safe | 3 |
| negative | neutral | positive |
| 0.057 | 0.508 | 0.435 |
| Raw frequency | 122 |
| Normalized frequency | 0.669 |
| Modifier score | 0.783 |
| Perplexity | 109.685 |