context: We believe that Bill is in the school. It is likely that Bernhard is a lion. There is little chance that Julius is gray. It is certain that if Julius is gray, or Bernhard is a lion, then Brian is a swan. There is little chance that if either Bill is in the school, or Bernhard is a lion, then Greg is a frog. It is impossible that if either Bernhard is a lion, or Bill is in the school, then Jeff went to the kitchen.
hypothesis: It is unlikely that julius is gray, or Bernhard is a lion.
valid_hypothesis: We believe that julius is gray, or Bernhard is a lion.
invalid_hypothesis: It is unlikely that julius is gray, or Bernhard is a lion.
hypothesis_assertion: Julius is gray, or Bernhard is a lion.