Definition: 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'.
Input: Context: California Governor Ronald Reagan, who selected Richard Schweiker as his running mate Link Information: Ronald Wilson Reagan (; February 6, 1911June 5, 2004) Question: What was the age difference between Ronald Reagan and his running mate?
Output:
Answer: 15