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: In 2000 Liao made his debut at the Washington National Opera Link Information: In 2000 Liao made his debut at the Washington National Opera Question: How long had the Kennedy Center been standing by the year Liao made his debut at the Washington National Opera?
[EX A]: Answer: 29

[EX Q]: Context: In 2015, he released his second studio album, Lantern Link Information: released on December 18, 2015,  Question: What albums did Pusha T release the year Lantern was released?
[EX A]: Answer: Darkest Before Dawn 

[EX Q]: Context: The Nelson Monument on Glasgow Green was designed by David Hamilton and paid for by public subscription. Link Information: none Question: How many years had David Hamilton been a professional when he designed The Nelson Monument on Glasgow Green?
[EX A]:
Answer: none