context: It is unlikely that Brian is a swan. There is almost no chance that Bernhard is a frog. It is certain that Mary moved to the office. It is probably not the case that if Mary moved to the office, or Bernhard is a frog, then John took the apple. It is certain that if Bernhard is a frog, or Mary moved to the office, then Sumit is bored. Chances are about even that if Brian is a swan, or Mary moved to the office, then Lily is a frog.
hypothesis: There is almost no chance that bernhard is a frog, and Mary moved to the office.
valid_hypothesis: There is almost no chance that bernhard is a frog, and Mary moved to the office.
invalid_hypothesis: There is a very good chance that bernhard is a frog, and Mary moved to the office.
hypothesis_assertion: Bernhard is a frog, and Mary moved to the office.