context: We believe that John went to the bedroom. It is certain that Emily is a cat. Chances are about even that Mary moved to the office. It is unlikely that if Mary moved to the office, or John went to the bedroom, then Bernhard is white. It is highly likely that if Emily is a cat, or Mary moved to the office, then Julius is a lion. It is likely that if Emily is a cat, or John went to the bedroom, then Gertrude is a mouse.
hypothesis: It is improbable that gertrude is a mouse, or Bernhard is white.
valid_hypothesis: We believe that gertrude is a mouse, or Bernhard is white.
invalid_hypothesis: It is improbable that gertrude is a mouse, or Bernhard is white.
hypothesis_assertion: Gertrude is a mouse, or Bernhard is white.