| from water | 3 | other |
| as a source of carbon | 2 | purpose |
| organism → fix → co2 | 4 |
| organism → use → co2 | 4 |
| organism → extract → co2 | 3 |
| negative | neutral | positive |
| 0.129 | 0.647 | 0.224 |
| Raw frequency | 11 |
| Normalized frequency | 0.302 |
| Modifier score | 0.900 |
| Perplexity | 259.856 |