Bob is green. Charlie is big. Charlie is furry. Charlie is not rough. Fiona is blue. Harry is furry. Harry is white. If something is not rough then it is blue. If something is not rough and not green then it is furry. Big things are furry. All white, green things are big. If Harry is red and Harry is big then Harry is blue. All furry things are red. If something is big and white then it is furry. If something is blue then it is white. If something is not blue then it is big.
Fiona is not big.