Dave is big. Dave is smart. Erin is big. Erin is not blue. Erin is not green. Erin is rough. Erin is smart. Erin is not white. Erin is young. Fiona is smart. Gary is big. Gary is not green. Gary is rough. Gary is not smart. Gary is white. Gary is young. If someone is smart and not blue then they are rough. If someone is blue and rough then they are big. If Dave is big and Dave is smart then Dave is green. All blue people are smart. Blue, rough people are not big. If someone is young and not rough then they are smart.
Gary is young.