context: Vladimir Andreevich Oppel was born a year in St. Petersburg in the family of a famous pianist and composer, chairman of the Russian Musical Society Andrei Alekseevich Oppel (1843–1888), son of a state councilor Alexei Khristoforovich Oppel (1808–1850) and grandson of a real state adviser, doctor of medicine, chief a doctor for the poor of the Moscow Educational House, writer Christopher Fedorovich Oppel (1768-1835) [6]. Mother, Varvara Leonidovna (1854-1913), is the granddaughter of the lieutenant general, academician A. I. Mikhailovsky-Danilevsky (1789-1848) and the daughter of his son Leonid Alexandrovich Mikhailovsky-Danilevsky [7]. Young Vladimir studied at the Third St. Petersburg Classical Gymnasium, the first years of study were hard for him: he was often punished, down to the punishment cell, his performance was also mediocre. However, in the last classes, Oppel's giftedness began to appear, and in 1891 he graduated from the gymnasium with a silver medal, which allowed him to enter the Military Medical Academy that same year, where he was accepted for the competition of medals. The decision to become a doctor was influenced by the example of great-grandfather - Christopher Fedorovich Oppel, a German by birth, who entered the Russian military service, then graduated from the Imperial Medical and Surgical Academy and became a doctor of medicine. Studying at the Academy, V. A. Oppel was fond of anatomy and surgery, he regularly visited the clinic of Professor V. A. Ratimov. During the years of study at the academy, such well-known professors as I.P. Pavlov, P.M. Albitsky, K.N. Vinogradov, M.V. Yanovsky, V. M. Bekhterev, M.S. Subbotin, I.I. Nasilov. He also had musical abilities, which he inherited from his father: V. A. Oppel had good vocal skills, played the piano, composed music himself and even seriously thought about the composer's career, but he made a choice in favor of medicine [3] [4] [8] [9] [10] [11] [12].
question: What did Vladimir Andreevich Oppel graduate from?
answers.text: Military Medical Academy