Harry is big. Harry is strong. Gary is thin. Gary is little. Bob is clever. Fiona is poor. Fiona is dull. If someone is not huge then they are poor. If someone is not sad then they are kind. If someone is clever then they are smart. If someone is smart and not bad then they are quiet. If someone is poor and not huge then they are rough. All rough people are small. If someone is thin and little then they are bad. If someone is bad and not smart then they are dull. If someone is dull then they are young. If someone is kind then they are wealthy. All wealthy people are nice. All quiet people are old. 
Bob is not old.