| in order to burn | 18 | purpose |
| to burn | 7 | purpose |
| as a substrate | 5 | manner |
| fire → need → fuel | 110 |
| fire → require → fuel | 45 |
| fire → need → a fuel source | 5 |
| negative | neutral | positive |
| 0.290 | 0.632 | 0.077 |
| Raw frequency | 160 |
| Normalized frequency | 0.551 |
| Modifier score | 1.000 |
| Perplexity | 222.286 |