Bob is blue. Bob is furry. Bob is smart. Dave is green. Erin is blue. Erin is round. Erin is white. If someone is round then they are blue. If Bob is furry and Bob is not smart then Bob is young. If someone is green and round then they are not young. If Erin is furry then Erin is not green. If someone is green then they are white. All white people are young. If someone is furry then they are white. If someone is not white then they are blue.
Bob is blue.