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.

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

Output: nitrous oxide


Input: Consider Input: We report a 31-year-old women with recurrent Hodgkin's lymphoma and unrecognized HMSN-1 who developed severe motor neuropathy 3 weeks after the first cycle of treatment including 2 mg of vincristine.

Output: vincristine


Input: Consider Input: After identification of the index patient, additional inquiry revealed that the patient's mother was hospitalized previously for overwhelming sepsis associated with metamizole use.


Output: metamizole