Bob is cold. Bob is furry. Bob is rough. Bob is white. Charlie is blue. Charlie is cold. Charlie is green. Charlie is rough. Charlie is young. Erin is furry. Gary is furry. Gary is young. All blue, rough people are white. If someone is furry and green then they are young. All rough, cold people are furry. If someone is cold and white then they are rough. Young people are blue. Young, white people are cold. All furry people are green. If someone is white and rough then they are young.
Bob is not blue.