| to provide heat | 5 | purpose |
| by as much as 85 percent | 2 | other |
| during nighttime deliveries | 2 | temporal |
| energy → be used for → light | 9 |
| energy → be used to → light | 8 |
| energy → be used to produce → light | 4 |
| energy → be used to provide → light | 4 |
| negative | neutral | positive |
| 0.169 | 0.690 | 0.141 |
| Raw frequency | 25 |
| Normalized frequency | 0.337 |
| Modifier score | 0.500 |
| Perplexity | 495.362 |