Bob is blue. Erin is blue. Erin is cold. Erin is green. Gary is blue. Gary is cold. Gary is furry. Gary is kind. Gary is rough. Gary is young. Harry is young. All green people are blue. If someone is cold and young then they are rough. If someone is blue and green then they are kind. All blue, green people are furry. All young people are kind. Blue people are green. If someone is rough then they are blue. Kind people are rough. Young, green people are furry.
Erin is not blue.