context: There is a very good chance that Bernhard is a swan. Chances are about even that Mary went to the garden. There is a very good chance that Brian is a frog.
hypothesis: It is highly likely that mary went to the garden, or Bernhard is a swan.
valid_hypothesis: It is highly likely that mary went to the garden, or Bernhard is a swan.
invalid_hypothesis: It is probably not the case that mary went to the garden, or Bernhard is a swan.
hypothesis_assertion: Mary went to the garden, or Bernhard is a swan.