Erin is not furry. Erin is not round. Fiona is not big. Fiona is furry. Fiona is green. Fiona is round. Fiona is white. Fiona is young. Harry is big. Harry is furry. Harry is not green. Harry is red. Harry is round. Harry is white. Harry is young. If Harry is white then Harry is furry. If Fiona is big then Fiona is not red. All young, round things are white. If something is furry and not red then it is green. If something is white then it is round. If something is furry and not white then it is big.
Erin is young.