| in reducing environmental impact | 5 | purpose |
| more cost | 3 | degree |
| environmentally | 2 | degree |
| plastic → be → effective | 18 |
| plastic → show → effectiveness | 5 |
| negative | neutral | positive |
| 0.014 | 0.247 | 0.739 |
| Raw frequency | 23 |
| Normalized frequency | 0.365 |
| Modifier score | 0.500 |
| Perplexity | 194.810 |