Bob is cold. Bob is green. Bob is rough. Charlie is cold. Charlie is green. Charlie is nice. Charlie is rough. Charlie is young. Fiona is green. Fiona is rough. Fiona is white. Fiona is young. Gary is not blue. Gary is cold. Gary is green. Gary is rough. If something is rough and white then it is cold. If something is young and blue then it is green. If something is not nice and not green then it is cold. If something is rough and not cold then it is not young. If something is green and not cold then it is blue. If something is cold and not blue then it is white.
Gary is young.