| Typicality: | 0.365 |
| Saliency: | 0.270 |
| to eliminate the need | 4 | purpose |
| with removable backup batteries | 3 | other |
| helmet → use → solar power | 5 |
| helmet → be powered by → solar cell | 4 |
| helmet → be → solar powered | 3 |
| negative | neutral | positive |
| 0.019 | 0.588 | 0.393 |
| Raw frequency | 12 |
| Normalized frequency | 0.270 |
| Modifier score | 0.500 |
| Perplexity | 308.443 |