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:
Fenclofenac-induced selective IgA deficiency in rheumatoid arthritis.

Ex Output:
Fenclofenac


Ex Input:
Isoniazid inhibits the conversion of tryptophan to niacin and may induce pellagra, particularly in poorly nourished patients.

Ex Output:
Isoniazid


Ex Input:
Reversible heart failure in a patient receiving etanercept for ankylosing spondylitis.

Ex Output:

etanercept