Given the task definition and input, reply with output. Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Context: Athole Shearer (November 20, 1900 -- March 17, 1985) was an actress most noted as the sister of motion picture star Norma Shearer and film sound engineer Douglas Shearer.
Question: Who is Athole Shearer's sister?
norma shearer