Dave is blue. Dave is green. Dave is quiet. Dave is rough. Dave is white. Erin is blue. Erin is red. Erin is young. Fiona is red. Harry is not green. Harry is red. Harry is rough. All quiet people are red. If Erin is red then Erin is rough. If Harry is quiet and Harry is red then Harry is blue. If someone is not white and not young then they are quiet. If Dave is quiet and Dave is not white then Dave is not green. If someone is not blue then they are red.
Fiona is red.