context: There is a very good chance that Bernhard is a swan. There is little chance that John went to the office. It is highly likely that Sandra took the apple. It is highly likely that if either John went to the office, or Bernhard is a swan, then Lily is a frog. It is probably not the case that if either Bernhard is a swan, or Sandra took the apple, then Julius is green. We doubt that if John went to the office, or Bernhard is a swan, then Brian is a lion.
hypothesis: There is almost no chance that john went to the office, and Brian is a lion.
valid_hypothesis: There is almost no chance that john went to the office, and Brian is a lion.
invalid_hypothesis: There is a better than even chance that john went to the office, and Brian is a lion.
hypothesis_assertion: John went to the office, and Brian is a lion.