| from either side of the housing | 7 | location |
| easily | 4 | manner |
| regularly | 4 | degree |
| filter → be → serviced | 34 |
| filter → need → service | 7 |
| negative | neutral | positive |
| 0.208 | 0.631 | 0.161 |
| Raw frequency | 41 |
| Normalized frequency | 0.433 |
| Modifier score | 0.800 |
| Perplexity | 175.601 |