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:
Interferon-alpha-induced focal segmental glomerulosclerosis in chronic myelogenous leukemia: a case report and review of the literature.

Ex Output:
Interferon-alpha


Ex Input:
An adult male presented with central blindness after ingesting methanol.

Ex Output:
methanol


Ex Input:
Hyperpigmentation during interferon-alpha therapy for chronic hepatitis C virus infection.

Ex Output:

interferon-alpha