Dave is big. Dave is green. Dave is not red. Erin is furry. Erin is nice. Erin is not red. Fiona is big. Fiona is furry. Fiona is nice. Harry is furry. All quiet things are furry. If Fiona is quiet and Fiona is big then Fiona is young. If something is big and not green then it is furry. All nice, green things are furry. If Dave is quiet and Dave is not green then Dave is not furry. If Harry is young then Harry is red. If something is young and not quiet then it is not furry. If something is not red then it is furry.
Fiona is not green.