| often | 8 | degree |
| very | 4 | degree |
| in nature | 4 | location |
| symptom → be → unclear | 30 |
| symptom → be → unknown | 16 |
| symptom → be → ambiguous | 12 |
| symptom → be → elusive | 4 |
| symptom → be → questionable | 3 |
| symptom → be → uncertain | 3 |
| negative | neutral | positive |
| 0.560 | 0.415 | 0.025 |
| Raw frequency | 68 |
| Normalized frequency | 0.421 |
| Modifier score | 0.670 |
| Perplexity | 33.909 |