Fiona is strong. Fiona is huge. Gary is thin. Gary is short. Alan is kind. Bob is poor. Bob is bad. If someone is not high then they are poor. If someone is not sad then they are quiet. If someone is kind then they are wealthy. If someone is wealthy and not dull then they are nice. If someone is poor and not high then they are rough. If someone is thin and short then they are dull. If someone is dull and not wealthy then they are bad. All quiet people are smart. 
Fiona is not rough.