| very | 3 | degree |
| closely | 2 | degree |
| symptom → be similar to → dengue | 6 |
| symptom → be similar to → dengue fever | 4 |
| symptom → resemble → those of dengue fever | 3 |
| symptom → be caused by → a dengue infection | 3 |
| negative | neutral | positive |
| 0.664 | 0.319 | 0.017 |
| Raw frequency | 16 |
| Normalized frequency | 0.226 |
| Modifier score | 0.700 |
| Perplexity | 8.698 |