| directly | 2 | manner |
| for making biochar | 2 | purpose |
| heat → be used for → cooking | 13 |
| heat → be → cooked | 5 |
| heat → be required for → cooking | 4 |
| heat → be involved in → cooking | 3 |
| negative | neutral | positive |
| 0.222 | 0.655 | 0.124 |
| Raw frequency | 25 |
| Normalized frequency | 0.355 |
| Modifier score | 1.000 |
| Perplexity | 84.877 |