Erin is smart. Erin is young. Fiona is not blue. If something is blue and not round then it is cold. If Fiona is not white then Fiona is young. If Fiona is blue and Fiona is round then Fiona is cold. If something is round then it is cold. Young things are not cold. If something is blue and not smart then it is not young.
Erin is not cold.