| with low speeds | 5 | other |
| reasonably | 2 | degree |
| dc motor → be → efficient | 4 |
| dc motor → be → energy-efficient | 3 |
| dc motor → be → more efficient | 3 |
| negative | neutral | positive |
| 0.015 | 0.308 | 0.677 |
| Raw frequency | 10 |
| Normalized frequency | 1.000 |
| Modifier score | 0.500 |
| Perplexity | 484.662 |