| Typicality: | 0.604 |
| Saliency: | 0.647 |
| regularly | 17 | degree |
| frequently | 13 | temporal |
| about twice a year | 10 | temporal |
| solar panel → be → cleaned | 86 |
| solar panel → need → cleaning | 11 |
| solar panel → require → cleaning | 8 |
| negative | neutral | positive |
| 0.152 | 0.595 | 0.253 |
| Raw frequency | 105 |
| Normalized frequency | 0.647 |
| Modifier score | 0.739 |
| Perplexity | 148.644 |