Bob is green. Bob is round. Bob is white. Charlie is green. Fiona is green. Gary is big. Gary is quiet. Gary is rough. Gary is round. Gary is white. If someone is not young then they are round. If someone is young then they are big. All round people are quiet. White people are round. If Fiona is big then Fiona is white. If someone is quiet then they are rough.
Fiona is not white.