Bob is blue. Bob is nice. Bob is quiet. Bob is rough. Bob is round. Bob is white. Bob is young. Charlie is nice. Charlie is quiet. Charlie is white. Erin is blue. Erin is nice. Gary is nice. Gary is rough. Blue, quiet people are young. If someone is young and quiet then they are rough. White, rough people are quiet. Young, nice people are rough. Nice people are white. Rough people are quiet. All quiet people are round. If Charlie is young and Charlie is quiet then Charlie is round. If Erin is blue and Erin is white then Erin is young.
Gary is not round.