| in evaluating heat loss | 4 | purpose |
| as a raw material for adhesives | 2 | purpose |
| rubber → be → important | 13 |
| rubber → be → essential | 5 |
| negative | neutral | positive |
| 0.106 | 0.581 | 0.314 |
| Raw frequency | 18 |
| Normalized frequency | 0.414 |
| Modifier score | 0.500 |
| Perplexity | 56.430 |