| to the surrounding environment | 4 | transitive-object |
| always | 3 | degree |
| completely | 2 | degree |
| curtain → be → clean | 26 |
| curtain → keep → clean | 6 |
| curtain → look → clean | 4 |
| negative | neutral | positive |
| 0.131 | 0.407 | 0.461 |
| Raw frequency | 36 |
| Normalized frequency | 0.534 |
| Modifier score | 0.925 |
| Perplexity | 124.516 |