| to appear in pipes | 4 | purpose |
| sometimes | 2 | temporal |
| corrosion → cause → hole | 6 |
| corrosion → create → hole | 5 |
| corrosion → produce → hole | 3 |
| negative | neutral | positive |
| 0.756 | 0.235 | 0.009 |
| Raw frequency | 14 |
| Normalized frequency | 0.475 |
| Modifier score | 0.400 |
| Perplexity | 72.234 |