context: It is probable that Greg is a frog. We believe that Bill discarded the milk. It is improbable that Bernhard is a rhino.
hypothesis: It is almost certain that bill discarded the milk, or Greg is a frog.
valid_hypothesis: It is almost certain that bill discarded the milk, or Greg is a frog.
invalid_hypothesis: We doubt that bill discarded the milk, or Greg is a frog.
hypothesis_assertion: Bill discarded the milk, or Greg is a frog.