| Typicality: | 0.531 |
| Saliency: | 0.412 |
| usually | 7 | temporal |
| along with gel memory foam | 6 | other |
| since the mid- 1960s | 4 | temporal |
| mattress → be made of → polyurethane foam | 23 |
| mattress → contain → polyurethane foam | 12 |
| mattress → consist of → polyurethane support foam | 10 |
| mattress → be made with → polyurethane foam | 6 |
| mattress → be made from → polyurethane foam | 4 |
| negative | neutral | positive |
| 0.293 | 0.591 | 0.115 |
| Raw frequency | 55 |
| Normalized frequency | 0.412 |
| Modifier score | 0.825 |
| Perplexity | 14.607 |