| extremely | 10 | degree |
| generally | 6 | degree |
| as other systems | 3 | other |
| heat pump → be → reliable | 32 |
| heat pump → be → dependable | 4 |
| negative | neutral | positive |
| 0.037 | 0.313 | 0.650 |
| Raw frequency | 36 |
| Normalized frequency | 0.485 |
| Modifier score | 0.900 |
| Perplexity | 457.009 |