Question: Who is the mother of the director of film Professor Shonku O El Dorado?
Sentence (from "Professor Shonku O El Dorado"): Professor Shanku O El Dorado (Professor Shanku and El Dorado) is a Bengali science fiction drama film directed by Sandip Ray based on "Nakur Babu O El Dorado", a story of Satyajit Ray.
Relevant evidence: Yes