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:
A 16-year-old white male with acute biphenotypic leukemia developed evidence of the eosinophilia myalgia syndrome associated with total parenteral nutritional support with solutions containing tryptophan, which were given during his initial induction chemotherapy and also after autologous marrow transplantation.

Ex Output:
tryptophan


Ex Input:
The occurrence of acute hepatitis is best known for ketoconazole.

Ex Output:
ketoconazole


Ex Input:
CASE SUMMARIES: Two patients who received ifosfamide-containing chemotherapy developed NCSE.

Ex Output:

ifosfamide