| Typicality: | 0.441 |
| Saliency: | 0.500 |
| for other issues | 9 | cause |
| often | 6 | degree |
| because of the vast amounts of energy | 6 | cause |
| requirement → be → costly | 67 |
| requirement → be → expensive | 49 |
| requirement → prove → costly | 4 |
| negative | neutral | positive |
| 0.680 | 0.295 | 0.025 |
| Raw frequency | 120 |
| Normalized frequency | 0.500 |
| Modifier score | 0.700 |
| Perplexity | 227.390 |