Bob is blue. Bob is cold. Bob is green. Bob is quiet. Bob is round. Bob is smart. Bob is white. Dave is blue. Dave is smart. Dave is white. Erin is blue. Erin is green. Erin is round. Erin is smart. Gary is green. Gary is smart. If someone is cold then they are white. If Dave is quiet and Dave is green then Dave is blue. Blue, green people are cold. If Dave is green then Dave is smart. All quiet people are cold. If someone is smart and green then they are quiet. White, smart people are cold. All cold people are green.
Erin is white.