context: There is a very good chance that Bernhard is gray. There is almost no chance that John went to the hallway. It is probably the case that Brian is a lion. It is impossible that if Brian is a lion, and Bernhard is gray, then Antoine is bored. It is improbable that if John went to the hallway, and Bernhard is gray, then Julius is a frog. It is certain that if Bernhard is gray, and Brian is a lion, then Mary moved to the office.
hypothesis: It is highly unlikely that either Brian is a lion, or Bernhard is gray.
valid_hypothesis: Chances are about even that either Brian is a lion, or Bernhard is gray.
invalid_hypothesis: It is highly unlikely that either Brian is a lion, or Bernhard is gray.
hypothesis_assertion: Either Brian is a lion, or Bernhard is gray.