Given the task definition and input, reply with output. 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: In November 1850, United States Army Captain Samuel P. Heintzelman met with Yuman leaders at the Salton Sea to negotiate a peace. Link Information: Samuel Peter Heintzelman (September 30, 1805 May 1, 1880) Question: How old was the army captain who met with Yuman leaders when they negotiated a peace?
Answer: 45