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:
Of the four patients who responded to HU with an increase in total Hb, all reported symptomatic improvement and three have not required further transfusions.

Ex Output:
HU


Ex Input:
There have been only two reports of cimetidine-induced hepatitis.

Ex Output:
cimetidine


Ex Input:
This represents the first report of nonconvulsive status epilepticus induced by ifosfamide.

Ex Output:

ifosfamide