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