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'.

[EX Q]: Context: Gemini 9A (officially Gemini IX-A) was a 1966 crewed spaceflight in NASA's Gemini program. Link Information: Conducted between projects Mercury and Apollo, Gemini started in 1961 and concluded in 1966 Question: How long was NASA's Gemini program active?
[EX A]: Answer: 5

[EX Q]: Context: His voice can be heard in the digital collectible card game by Blizzard Entertainment, Hearthstone. Link Information: none Question: Who is the CEO of the company that produced Hearthstone?
[EX A]: Answer: none

[EX Q]: Context: Rudy Vallee was the first artist to make the charts in Billboard magazine with "As Time Goes By" when he took the song to number 15 in 1931 Link Information: Hubert Prior "Rudy" Vallee (July 28, 1901 July 3, 1986) Question: How old was Rudy Vallee when he reached number 15 on the Billboard charts?
[EX A]:
Answer: 30