Anne is furry. Charlie is furry. Charlie is kind. Charlie is round. Fiona is furry. Fiona is kind. Fiona is quiet. Fiona is round. Fiona is white. Harry is furry. Harry is kind. Harry is smart. If Fiona is furry then Fiona is round. All white people are round. All white, smart people are furry. All green people are smart. If Fiona is round and Fiona is kind then Fiona is quiet. If someone is round then they are green.
Fiona is not green.