Bob is cold. Bob is green. Bob is kind. Bob is round. Charlie is blue. Charlie is green. Erin is kind. Furry, green people are blue. If Bob is cold and Bob is kind then Bob is furry. If someone is kind then they are cold. All green people are young. Green, young people are kind. All cold people are blue. If Erin is furry and Erin is kind then Erin is blue. If Bob is cold and Bob is furry then Bob is green.
Erin is not young.