context: We doubt that Lily is yellow. It is probable that Brian is gray. We believe that Mary went to the office.
hypothesis: Chances are slight that lily is yellow, or Mary went to the office.
valid_hypothesis: There is a very good chance that lily is yellow, or Mary went to the office.
invalid_hypothesis: Chances are slight that lily is yellow, or Mary went to the office.
hypothesis_assertion: Lily is yellow, or Mary went to the office.