| in water supply and sewage pipes | 7 | location |
| very | 4 | degree |
| pvc → be → useful | 4 |
| pvc → be used for → instance | 4 |
| pvc → be used for → many other applications | 3 |
| negative | neutral | positive |
| 0.031 | 0.438 | 0.531 |
| Raw frequency | 11 |
| Normalized frequency | 0.390 |
| Modifier score | 0.500 |
| Perplexity | 314.933 |