| very | 9 | degree |
| for diagnosis | 7 | purpose |
| to arthritis | 4 | transitive-object |
| symptom → be → relevant | 17 |
| symptom → be → useful | 15 |
| symptom → be → meaningful | 8 |
| symptom → be → informative | 4 |
| negative | neutral | positive |
| 0.272 | 0.492 | 0.235 |
| Raw frequency | 44 |
| Normalized frequency | 0.362 |
| Modifier score | 0.833 |
| Perplexity | 109.155 |