Instructions: 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: During those two years Warner also played two games against John Heisman, another future coaching legend. Heisman was the head coach at Auburn University, and they faced each other in the Link Information: Heisman coached football at Auburn from 1895 to 1899. Question: How long was Heisman head coach at Auburn?
Output:
Answer: 4