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: Park Geun-hye of the Saenuri party was elected the first female South Korean president with 51.6% Link Information: Lee won the presidential election in December 2007 with 48.7% of the vote which was considered a landslide. Question: What was the percentage share  of the vote of Park's predecessor?
[EX A]: Answer:  48.7%

[EX Q]: Context: At first, he served under Luchino Visconti in Lombardy but within a year he entered the service of the husband of Joanna I of Naples, Andrew, Duke of Calabria, who was the son of the King Charles I of Hungary. Link Information: none Question: How many kings did Hungary have before Joanna I of Naples father-in-law?
[EX A]:
Answer: none