Anne is green. Anne is rough. Anne is round. Anne is smart. Anne is white. Anne is young. Erin is green. Erin is rough. Erin is round. Erin is white. Fiona is not green. Fiona is round. Fiona is white. Gary is rough. Gary is smart. If Erin is white then Erin is rough. Rough, smart people are young.
Erin is not young.