| in hay fever | 2 | other |
| histamine → cause → sneezing | 16 |
| histamine → produce → sneezing | 5 |
| histamine → initiate → sneezing | 3 |
| histamine → trigger → sneezing | 3 |
| negative | neutral | positive |
| 0.806 | 0.182 | 0.011 |
| Raw frequency | 27 |
| Normalized frequency | 0.573 |
| Modifier score | 0.500 |
| Perplexity | 100.252 |