Bob is furry. Bob is red. Erin is furry. Erin is kind. Erin is nice. Erin is young. Fiona is not blue. Fiona is nice. Harry is blue. Harry is nice. If something is young and not furry then it is rough. All kind, blue things are not furry. All furry things are nice. Rough, blue things are red. If something is blue then it is young. If Harry is red then Harry is kind.
Erin is not rough.