| greatly | 7 | degree |
| by reducing the sulphur content | 3 | manner |
| effectively | 2 | manner |
| pollution → be → reduced | 35 |
| pollution → be reduced at → the source | 10 |
| pollution → be → minimized | 7 |
| negative | neutral | positive |
| 0.199 | 0.553 | 0.248 |
| Raw frequency | 52 |
| Normalized frequency | 0.779 |
| Modifier score | 1.000 |
| Perplexity | 24.730 |