| with non removable fabric | 2 | other |
| in traditional japanese terms | 2 | other |
| futon → be → mattress | 5 |
| futon → be → quilted mattress | 3 |
| futon → be → a type of mattress | 3 |
| negative | neutral | positive |
| 0.111 | 0.818 | 0.072 |
| Raw frequency | 11 |
| Normalized frequency | 0.338 |
| Modifier score | 0.500 |
| Perplexity | 76.228 |