| by polymerizing vinyl chloride | 4 | manner |
| from ethylene | 3 | other |
| from crude oil | 2 | other |
| pvc → be → produced | 23 |
| pvc → be → made | 13 |
| pvc → be → manufactured | 7 |
| negative | neutral | positive |
| 0.342 | 0.531 | 0.127 |
| Raw frequency | 43 |
| Normalized frequency | 0.799 |
| Modifier score | 0.900 |
| Perplexity | 281.633 |