Charlie is cold. Charlie is not nice. Charlie is white. Erin is cold. Erin is green. Erin is rough. Erin is not round. Fiona is green. Fiona is rough. Fiona is not round. Harry is blue. Harry is cold. Harry is green. Harry is rough. Harry is round. Harry is not white. If Charlie is nice then Charlie is not blue. If something is blue then it is round. If something is not rough then it is blue. If something is green and blue then it is cold. If something is round then it is cold. Round, cold things are green. If something is round and not green then it is not rough. If something is not cold then it is not blue.
Erin is not nice.