Dave is cold. Dave is white. Erin is cold. Erin is furry. Erin is young. Fiona is not cold. Fiona is young. Quiet, cold things are white. All quiet, rough things are furry. If something is cold then it is young. Rough, white things are quiet. If Erin is white and Erin is not cold then Erin is furry. If something is furry then it is not round.
Fiona is not white.