In this task, you will be given sentences in which your task is to recognize the name of the drug or medicine. Drugs are substances that change a person's mental or physical state. They can affect how your brain works, how you feel and behave, your understanding, and your senses. Although there might be several correct answers, you need to write one of them.

Ex Input:
The patient received only the ophthalmic sulfonamide, and it was used for one day, but he developed Stevens-Johnson syndrome.

Ex Output:
sulfonamide


Ex Input:
We report 5 cases of acute reversible renal failure coinciding with the onset of treatment with captopril in patients with severe drug-resistant hypertension.

Ex Output:
captopril


Ex Input:
Acute myelogenous leukemia in patients receiving chlorambucil as long-term adjuvant chemotherapy for stage II breast cancer.

Ex Output:

chlorambucil