Detailed 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'.
Q: Context: It is said that Barnett twice saved the Great Seal of the State of Georgia. The first time was when Union troops under William Tecumseh Sherman were about to capture the State Capitol at Milledgeville. Link Information: William Tecumseh Sherman (February 8, 1820 February 14, 1891) was an American soldier, businessman, educator, and author. He served as a general in the Union Army during the American Civil War ( Question: What was the military rank of the person who commanded Union troops the first time Barnett saved the Great Seal of the State of Georgia?
A:
Answer: general