Erin is quiet. Erin is rough. Erin is round. Fiona is blue. Fiona is green. Fiona is nice. Fiona is quiet. Fiona is red. Fiona is rough. Harry is green. Harry is nice. Harry is not quiet. Harry is red. Harry is rough. Harry is round. If something is red and not quiet then it is nice. If Erin is quiet then Erin is rough. Round things are green. If Harry is rough and Harry is blue then Harry is green. If Fiona is nice then Fiona is round. If Fiona is not red then Fiona is rough. If Erin is rough then Erin is nice. All rough things are round.
Erin is red.