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: In the academic field, he was president of the Royal Statistical Society from 1987 to 1989, and president of the London Mathematical Society from 1990 to 1992 Link Information: none Question: In the years that John Kingman was president of the Royal Statistical Society versus the years that he was president of the London Mathematical Society, which society had more members?
Output:
Answer: none