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'.

Context: Samuel James "Sam" Ervin Jr. (September 27, 1896April 23, 1985) Link Information: Ervin was a legal defender of the Jim Crow laws Question: How old was Ervin when enforcement of the Jim Crow laws ended?
Answer: 69

Context: where he joined the Canadian Army at the outbreak of World War II, but was invalided out in 1941. Link Information: none Question: How many Canadian soldiers were serving active duty the year Morris was invalided out of the Canadian Army?
Answer: none

Context: In contrast, the northern army of General Horatio Gates had won a signal victory over John Burgoyne's forces Link Information: He took credit for the American victory in the Battles of Saratoga (1777) a matter of contemporary and historical controversy and was blamed for the defeat at the Battle of Camden in 1780. Question: Which general had a more successful career, Gates or Burgoyne?
Answer: John Burgoyne