Dave is blue. Dave is cold. Dave is nice. Dave is white. Erin is blue. Erin is nice. Erin is red. Erin is white. Fiona is blue. Fiona is round. If Dave is white and Dave is cold then Dave is red. If Dave is round then Dave is red. All white, red things are blue. Round things are blue. Round things are blue. If something is rough and nice then it is cold.
Fiona is not cold.