context: Chances are about even that Sandra took the apple. It is improbable that Bernhard is a frog. Chances are slight that Brian is yellow. It is almost certain that if either Sandra took the apple, or Brian is yellow, then Lily is a lion. It is unlikely that if Brian is yellow, or Sandra took the apple, then Mary went to the office. There is little chance that if either Sandra took the apple, or Brian is yellow, then Winona is a wolf.
hypothesis: We doubt that either Brian is yellow, or Bernhard is a frog.
valid_hypothesis: We doubt that either Brian is yellow, or Bernhard is a frog.
invalid_hypothesis: We believe that either Brian is yellow, or Bernhard is a frog.
hypothesis_assertion: Either Brian is yellow, or Bernhard is a frog.