Charlie is furry. Charlie is green. Erin is white. Fiona is big. Fiona is green. Gary is green. Gary is rough. If something is blue then it is big. All quiet things are big. All furry, rough things are green. If Erin is furry then Erin is rough. All quiet things are rough. All white things are blue. If Fiona is quiet and Fiona is green then Fiona is big. If something is green then it is quiet. All blue things are furry.
Erin is not quiet.