Dave is big. Dave is cold. Dave is kind. Dave is white. Fiona is big. Fiona is green. Fiona is kind. Harry is cold. Harry is rough. Harry is white. All kind, rough things are green. Big things are round. Cold things are kind. If something is big then it is round. If Fiona is rough and Fiona is white then Fiona is green. If something is round and cold then it is white. If something is rough then it is big. If Harry is big then Harry is cold.
Dave is not green.