context: It is highly unlikely that Bernhard is a lion. There is a better than even chance that Mary dropped the milk. It is probably the case that Brian is a rhino.
hypothesis: There is little chance that either Brian is a rhino, or Bernhard is a lion.
valid_hypothesis: It is probable that either Brian is a rhino, or Bernhard is a lion.
invalid_hypothesis: There is little chance that either Brian is a rhino, or Bernhard is a lion.
hypothesis_assertion: Either Brian is a rhino, or Bernhard is a lion.