| Typicality: | 0.476 |
| Saliency: | 0.530 |
| to feed into the fuel cell | 7 | purpose |
| from sunlight | 4 | other |
| from formic acid | 3 | other |
| catalyst → produce → hydrogen | 17 |
| catalyst → store → hydrogen | 3 |
| catalyst → produce → purer form of hydrogen | 3 |
| catalyst → convert → hydrogen | 3 |
| catalyst → make → hydrogen | 3 |
| negative | neutral | positive |
| 0.086 | 0.627 | 0.287 |
| Raw frequency | 29 |
| Normalized frequency | 0.530 |
| Modifier score | 0.500 |
| Perplexity | 188.515 |