| highly energy | 62 | degree |
| very | 59 | degree |
| highly | 31 | degree |
| unit → be → efficient | 510 |
| unit → be → more efficient | 123 |
| unit → be → most efficient | 5 |
| unit → be → more efficient than others | 4 |
| unit → be → the most efficient | 3 |
| negative | neutral | positive |
| 0.040 | 0.260 | 0.700 |
| Raw frequency | 645 |
| Normalized frequency | 0.743 |
| Modifier score | 0.770 |
| Perplexity | 316.067 |