Bob is blue. Bob is green. Bob is kind. Bob is quiet. Bob is rough. Dave is rough. Erin is blue. Erin is green. Erin is kind. Erin is nice. Harry is blue. Harry is green. All nice, green people are rough. All rough, quiet people are round. All quiet, blue people are round. All round people are nice. If Erin is blue then Erin is quiet. If Harry is rough and Harry is blue then Harry is kind. All green people are quiet. All kind people are blue. If someone is rough then they are nice.
Dave is rough.