Q: 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: Eden's great-grandfather was William Iremonger, who commanded the 2nd Regiment of Foot during the Peninsular War Link Information: The Peninsular War (1807–1814)  Question: How many years did the war last that Eden's great-grandfather commanded the 2nd regiment of foot?
A:
Answer: 7