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