| due to dust buildup | 3 | cause |
| sometimes | 2 | temporal |
| in place | 2 | location |
| damper → be → stuck | 11 |
| damper → become → stuck | 5 |
| damper → get → stuck | 4 |
| negative | neutral | positive |
| 0.542 | 0.425 | 0.034 |
| Raw frequency | 20 |
| Normalized frequency | 0.438 |
| Modifier score | 0.433 |
| Perplexity | 155.207 |