Dave is big. Dave is round. Dave is young. Fiona is round. Fiona is young. Gary is big. Gary is blue. Gary is cold. Gary is furry. Gary is young. If something is young then it is blue. All green things are blue. All cold things are round. Cold, big things are blue. If something is cold and not round then it is young. If something is blue and not young then it is not round.
Fiona is green.