Bob is furry. Bob is green. Bob is white. Erin is furry. Erin is green. Erin is rough. Erin is round. Erin is young. Fiona is furry. Fiona is green. Fiona is young. Gary is furry. Gary is green. Gary is white. Gary is young. Furry, white people are round. If someone is furry and white then they are green. All young, green people are furry. If Erin is round then Erin is quiet. If someone is round and rough then they are furry. White, rough people are round.
Erin is not young.