context: It is highly likely that Greg is a lion. There is a very good chance that Brian is gray. It is certain that Daniel is in the office. It is probable that if Greg is a lion, or Brian is gray, then Bernhard is white. It is probably the case that if Daniel is in the office, and Brian is gray, then John went to the garden. There is almost no chance that if Daniel is in the office, or Greg is a lion, then Lily is a rhino.
hypothesis: It is probably the case that lily is a rhino, and Brian is gray.
valid_hypothesis: There is almost no chance that lily is a rhino, and Brian is gray.
invalid_hypothesis: It is probably the case that lily is a rhino, and Brian is gray.
hypothesis_assertion: Lily is a rhino, and Brian is gray.