Charlie is big. Charlie is furry. Charlie is white. Charlie is young. Fiona is rough. Gary is big. Gary is rough. Harry is furry. Harry is rough. Harry is smart. Harry is white. Big things are white. Young things are blue. All blue, young things are big. If Gary is white and Gary is smart then Gary is blue. Big things are white. All rough things are furry. Furry things are young. If something is big and rough then it is furry. Big, white things are furry.
Charlie is not smart.