Adverse drug reactions are appreciably harmful or unpleasant reactions resulting from an intervention related to the use of medical products, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product. Given medical case reports extracted from MEDLINE, the task is to classify whether the case report mentions the presence of any adverse drug reaction. Classify your answers into non-adverse drug event and adverse drug event.

Example Input: Full recovery to pre-episode status of a quiet eye with clear vitreous was seen in all patients.
Example Output: non-adverse drug event

Example Input: Carbamazepine-induced hyperammonemia.
Example Output: adverse drug event

Example Input: A twelve year-old-girl with idiopathic partial epilepsy with secondary generalization, developed acute psychosis 10 days after the administration of levetiracetam.
Example Output:
adverse drug event

