| for easy washing | 12 | purpose |
| fully | 2 | degree |
| generally | 2 | degree |
| pillow → be → removable | 25 |
| pillow → have → removable cover | 22 |
| pillow → come with → removable cover | 16 |
| pillow → have → removable covers | 9 |
| negative | neutral | positive |
| 0.050 | 0.558 | 0.392 |
| Raw frequency | 72 |
| Normalized frequency | 0.556 |
| Modifier score | 0.756 |
| Perplexity | 294.990 |