Bob is kind. Bob is quiet. Bob is round. Bob is young. Charlie is blue. Charlie is not kind. Charlie is round. Charlie is young. Dave is big. Dave is furry. Dave is quiet. Dave is round. Dave is young. Harry is big. Harry is blue. Harry is kind. If Charlie is kind then Charlie is big. If Dave is furry and Dave is not big then Dave is kind. If Bob is round then Bob is young. Furry things are young. If Dave is round and Dave is kind then Dave is young. Quiet things are kind. If Bob is blue then Bob is big. If something is furry and not kind then it is not blue.
Bob is not big.