Question: What is the date of birth of Vsevolod Gantmakher's father?
Sentence (from "Vsevolod Gantmakher"): Vsevolod Feliksovich Gantmakher (October 8, 1935 – March 5, 2015; "Всеволод Феликсович Гантмахер"), a prominent Russian experimental physicist of Jewish origin, was born in Moscow as son of Felix Gantmacher, a prominent mathematician.
Relevant evidence: Yes