| to be durable | 4 | purpose |
| headphone → be → rugged | 11 |
| headphone → be engineered → rugged | 10 |
| headphone → be designed to be → tough | 3 |
| headphone → be designed to be → rugged | 3 |
| negative | neutral | positive |
| 0.030 | 0.302 | 0.669 |
| Raw frequency | 27 |
| Normalized frequency | 0.378 |
| Modifier score | 0.500 |
| Perplexity | 281.072 |