context: There is a very good chance that Bernhard is gray. It is almost certain that John went to the hallway. It is probably the case that Lily is gray. There is a better than even chance that if either Lily is gray, or Bernhard is gray, then Brian is a lion. It is impossible that if John went to the hallway, and Lily is gray, then Fred is in the park. Chances are slight that if Lily is gray, or Bernhard is gray, then Mary grabbed the milk.
hypothesis: It is certain that john went to the hallway, or Bernhard is gray.
valid_hypothesis: It is certain that john went to the hallway, or Bernhard is gray.
invalid_hypothesis: There is almost no chance that john went to the hallway, or Bernhard is gray.
hypothesis_assertion: John went to the hallway, or Bernhard is gray.