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.

Ex Input:
Anterior uveitis and secondary glaucoma resulting from intraocular ointment has not been reported.

Ex Output:
non-adverse drug event


Ex Input:
Adenomyosis confined to the broad ligament is extremely rare.

Ex Output:
non-adverse drug event


Ex Input:
METHODS: We report a patient with symptoms of small bowel obstruction whose diagnosis was confirmed by previous operation owing to a well-known pathology due to an unusual reason, perforation, which was masqueraded by therapeutic drugs.

Ex Output:

non-adverse drug event