Bob is quiet. Dave is quiet. Erin is blue. Quiet, young people are not white. If Bob is quiet and Bob is white then Bob is furry. If Erin is red and Erin is young then Erin is not quiet. If Bob is white and Bob is young then Bob is not furry. If someone is red then they are not quiet. All quiet, blue people are furry. All blue, quiet people are red. If someone is not quiet then they are red.
Erin is not red.