Anne is big. Anne is cold. Anne is green. Anne is round. Dave is rough. Erin is big. Erin is furry. Erin is white. Fiona is big. Fiona is furry. All big, rough people are round. All furry people are white. Round people are furry. Cold, white people are big. If Erin is round then Erin is white. Green, cold people are furry. All round people are rough. Rough people are cold. Cold people are round.
Erin is not round.