| Typicality: | 0.447 |
| Saliency: | 0.157 |
| historically | 3 | temporal |
| hydrogen → be made by → reforming natural gas | 4 |
| hydrogen → be produced by → steam reforming of natural gas | 3 |
| negative | neutral | positive |
| 0.143 | 0.754 | 0.102 |
| Raw frequency | 7 |
| Normalized frequency | 0.157 |
| Modifier score | 0.900 |
| Perplexity | 23.362 |