| from natural gas | 29 | location |
| from water | 23 | other |
| from the decomposition of an organosiloxane | 15 | other |
| hydrogen → be → extracted | 64 |
| hydrogen → be → obtained | 52 |
| hydrogen → be → derived | 35 |
| hydrogen → be → acquired | 4 |
| negative | neutral | positive |
| 0.137 | 0.681 | 0.182 |
| Raw frequency | 155 |
| Normalized frequency | 0.733 |
| Modifier score | 0.879 |
| Perplexity | 86.130 |