Bob is not young. Charlie is blue. Charlie is furry. Fiona is quiet. Fiona is rough. Harry is not cold. Harry is round. All furry people are blue. All quiet people are rough. If Charlie is cold and Charlie is not round then Charlie is rough. If someone is quiet and young then they are not rough. Quiet people are not cold. If Bob is quiet and Bob is not rough then Bob is not blue.
Fiona is not cold.