| each time the airways are | 8 | temporal |
| less often | 3 | degree |
| at night | 2 | temporal |
| symptom → can → occur | 10 |
| symptom → can → happen | 10 |
| symptom → take → place | 4 |
| negative | neutral | positive |
| 0.633 | 0.350 | 0.017 |
| Raw frequency | 24 |
| Normalized frequency | 0.633 |
| Modifier score | 0.600 |
| Perplexity | 117.794 |