Dave is blue. Dave is green. Dave is not nice. Erin is green. Erin is nice. Erin is rough. Erin is young. Fiona is blue. Fiona is young. Harry is green. Nice, young people are not red. If someone is big and not nice then they are red. All blue, young people are big. If Fiona is rough then Fiona is green. If someone is rough and not young then they are red. If someone is not rough and not blue then they are big. If Fiona is red and Fiona is not rough then Fiona is green. Green, blue people are red.
Dave is not young.