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.

Example Input: Acute myeloid leukemia evolving from essential thrombocythemia in two patients treated with hydroxyurea.
Example Output: hydroxyurea

Example Input: Patients with vitamin B12 deficiency are exceedingly sensitive to neurologic deterioration following nitrous oxide anesthesia.
Example Output: nitrous oxide

Example Input: A 42 year old man, treated for testicular carcinoma with combination chemotherapy that included bleomycin, developed life threatening interstitial pneumonitis.
Example Output:
bleomycin