| surprisingly | 3 | degree |
| to large engine | 3 | cause |
| often | 2 | degree |
| engine → be → cheaper | 13 |
| engine → be cheaper to → run | 4 |
| engine → be → less costly | 3 |
| negative | neutral | positive |
| 0.090 | 0.546 | 0.363 |
| Raw frequency | 20 |
| Normalized frequency | 0.329 |
| Modifier score | 0.800 |
| Perplexity | 49.770 |