context: It is probably not the case that Greg is a lion. We doubt that Bernhard is a rhino. We believe that Julius is gray. There is little chance that if Greg is a lion, or Bernhard is a rhino, then Lily is white. It is unlikely that if Bernhard is a rhino, and Julius is gray, then Mary left the apple. There is a very good chance that if Bernhard is a rhino, or Greg is a lion, then John went to the garden.
hypothesis: There is a very good chance that julius is gray, or Bernhard is a rhino.
valid_hypothesis: There is a very good chance that julius is gray, or Bernhard is a rhino.
invalid_hypothesis: It is highly unlikely that julius is gray, or Bernhard is a rhino.
hypothesis_assertion: Julius is gray, or Bernhard is a rhino.