In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: Dalek Attack is a computer game based on the long-running British science fiction television series Doctor Who, in which the player controls the Doctor and fights recurring adversaries, the Link Information: first appeared in the 1963 Doctor Who serial The Daleks, Question: When did the villains in Dalek Attack first appear in Doctor Who?
Answer: 1963 

Context: The Army of Georgia, also under the command of William T. Sherman, Link Information: William Tecumseh Sherman (February 8, 1820  Question: What was the birthdate of person in command of the Army of Georgia? 
Answer: February 8, 1820 

Context: he became the first to isolate the measles virus from the brain of a child who had died from measles encephalitis Link Information: none Question: How many days do the symptoms last of the virus Hodes isolate from the brain of a child who died?

Answer: none