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: Rapidly developing hyperglycemia during treatment with olanzapine.
Example Output: adverse drug event

Example Input: Such anagen effluvium with lichenoid eruption following INH therapy has not been observed previously.
Example Output: adverse drug event

Example Input: Introduction of the balloon into the left atrium resulted in thrombotic occlusion of the mitral valve.
Example Output:
non-adverse drug event