context: It is impossible that John went to the bedroom. Chances are slight that Lily is yellow. It is almost certain that Greg is a swan. Chances are slight that if Lily is yellow, and John went to the bedroom, then Brian is green. It is improbable that if John went to the bedroom, or Lily is yellow, then Bernhard is a lion. Chances are about even that if Greg is a swan, and Lily is yellow, then Jeff moved to the office.
hypothesis: Chances are about even that brian is green, or John went to the bedroom.
valid_hypothesis: It is impossible that brian is green, or John went to the bedroom.
invalid_hypothesis: Chances are about even that brian is green, or John went to the bedroom.
hypothesis_assertion: Brian is green, or John went to the bedroom.