| for waste gas | 4 | purpose |
| in an elevated position | 3 | location |
| to a combustor including features | 2 | other |
| invention → relate to → combustor | 8 |
| invention → provide → combustor | 4 |
| negative | neutral | positive |
| 0.054 | 0.793 | 0.153 |
| Raw frequency | 12 |
| Normalized frequency | 0.183 |
| Modifier score | 0.500 |
| Perplexity | 185.781 |