Charlie is cold. Charlie is green. Charlie is round. Charlie is smart. Dave is big. Dave is furry. Dave is kind. Dave is smart. Erin is furry. Erin is round. Erin is smart. Fiona is cold. Fiona is green. Fiona is kind. Fiona is smart. If Dave is kind then Dave is round. If Fiona is furry then Fiona is kind. If someone is furry and cold then they are not kind.
Dave is not round.