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: Reversible valproic acid-induced dementia: a case report.

Output: valproic acid


Input: Consider Input: Acute erythroid leukemia after cyclophosphamide therapy for multiple myeloma: report of two cases.

Output: cyclophosphamide


Input: Consider Input: Acute pancreatitis associated with danazol treatment for endometriosis.


Output: danazol