| to certain materials | 7 | transitive-object |
| to penicillin | 3 | transitive-object |
| to the metal alloys | 3 | transitive-object |
| patient → have → allergy | 31 |
| patient → have → a history of allergy | 3 |
| negative | neutral | positive |
| 0.582 | 0.342 | 0.076 |
| Raw frequency | 34 |
| Normalized frequency | 0.467 |
| Modifier score | 0.567 |
| Perplexity | 227.504 |