| because of this button-hole feature | 5 | cause |
| by ducting to an exhaust system | 4 | manner |
| usually | 2 | degree |
| enclosure → be → connected | 10 |
| enclosure → be → attached | 5 |
| negative | neutral | positive |
| 0.114 | 0.729 | 0.157 |
| Raw frequency | 15 |
| Normalized frequency | 0.387 |
| Modifier score | 0.900 |
| Perplexity | 137.041 |