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: Roycroft was born in 1946 as the second of three sons to Bill Roycroft, an Olympic equestrian gold medallist Link Information: After the war, they moved with their son Barry (born 1944) to a 200 ha soldier's block near Camperdown in western Victoria, where they set up a dairy farm. The couple had two further sons, Wayne (born 1946) and Clarke (born 1950). Question: What are the names of the equestrian gold medallist's other sons?
[EX A]: Answer: Barry

[EX Q]: Context: He was a close comrade of Joan of Arc. He was one of the few military leaders who believed in her and the inspiration she brought, and he fought alongside her at Orleans. Link Information: The Siege of Orleans (12 October 1428 8 May 1429) was the watershed of the Hundred Years' War between France and England Question: When did the battle that La Hire fought alongside Joan of Arc in take place?
[EX A]: Answer: 12 October 1428 8 May 1429

[EX Q]: Context: He joined the lab of eminent protein chemist Max Bergmann at the Rockefeller Institute in 1940 Link Information: none Question: Who had the longer tenure at the Rockefeller Institute, Emil L. Smith or Max Bergmann?
[EX A]:
Answer: none