context: It is probable that Bernhard is yellow. We believe that Mary went to the bedroom. We doubt that Brian is a rhino. It is probably not the case that if either Brian is a rhino, or Bernhard is yellow, then Yann is tired. It is probably the case that if Brian is a rhino, or Bernhard is yellow, then Julius is green. Chances are about even that if Bernhard is yellow, and Mary went to the bedroom, then Greg is a swan.
hypothesis: There is a very good chance that greg is a swan, or Yann is tired.
valid_hypothesis: It is probably not the case that greg is a swan, or Yann is tired.
invalid_hypothesis: There is a very good chance that greg is a swan, or Yann is tired.
hypothesis_assertion: Greg is a swan, or Yann is tired.