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: confluence of the rapidly flowing Lehigh River's waters with the more stately waters of the deeper wider Delaware Link Information: none Question: Where in Easton does the Lehigh river meet the Delaware?
[EX A]: Answer: none

[EX Q]: Context: and Julius and Ethel Rosenberg, U.S. citizens executed in 1953 after conviction of espionage Link Information: Julius F2P was born on May 12, 1918, Question: How old was Julius Rosenberg when he was executed?
[EX A]: Answer: 35

[EX Q]: Context: on 30 May 1603 he became for life one of the six chief masters of the navy Link Information: The modern Royal Navy traces its origins to the early 16th century Question: How long had the Royal Navy been in existence for by the year Shilling became a chief master?
[EX A]:
Answer: 15