Q: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Context : Maschenka (Russian: , Mashen'ka; English: Mary) is a 1987 British film adaptation of the debut novel by Vladimir Nabokov, first published under his pen name V. Sirin in 1926.
Answer : Mary
A:
The Maschenka is based upon what?