context: It is highly unlikely that Julius is a lion. It is unlikely that Bernhard is green. There is little chance that Greg is a lion. We believe that if Greg is a lion, and Bernhard is green, then Brian is a frog. It is probable that if either Julius is a lion, or Bernhard is green, then Winona is a mouse. It is certain that if Greg is a lion, and Julius is a lion, then John got the milk.
hypothesis: It is unlikely that either Bernhard is green, or Brian is a frog.
valid_hypothesis: It is unlikely that either Bernhard is green, or Brian is a frog.
invalid_hypothesis: There is a very good chance that either Bernhard is green, or Brian is a frog.
hypothesis_assertion: Either Bernhard is green, or Brian is a frog.