Bob is blue. Dave is not blue. Fiona is big. Gary is quiet. If someone is big and not cold then they are round. If Fiona is furry then Fiona is big. All round people are quiet. If Bob is blue and Bob is not young then Bob is furry. If someone is not cold then they are big. All big people are round. If someone is cold then they are blue. If someone is not furry and not cold then they are round.
Bob is blue.