context: It is probably not the case that Greg is a swan. There is a very good chance that John went to the bedroom. It is probable that Gertrude is a mouse. It is probable that if either Greg is a swan, or John went to the bedroom, then Julius is green. Chances are about even that if John went to the bedroom, and Gertrude is a mouse, then Sandra left the apple. It is almost certain that if either John went to the bedroom, or Gertrude is a mouse, then Jessica is a mouse.
hypothesis: It is impossible that john went to the bedroom, or Jessica is a mouse.
valid_hypothesis: It is almost certain that john went to the bedroom, or Jessica is a mouse.
invalid_hypothesis: It is impossible that john went to the bedroom, or Jessica is a mouse.
hypothesis_assertion: John went to the bedroom, or Jessica is a mouse.