Bob is furry. Erin is nice. Erin is quiet. Erin is round. Fiona is furry. Fiona is kind. Fiona is nice. Fiona is quiet. Fiona is red. Harry is nice. Harry is red. If Fiona is nice then Fiona is round. Nice, round things are quiet. All nice, kind things are round. All green things are kind. Red things are round. All nice, green things are furry. If something is furry then it is nice. All nice things are green. Red, quiet things are furry.
Fiona is not green.