context: It is highly likely that Sandra left the football. It is impossible that Greg is a frog. Chances are about even that Mary dropped the milk. It is improbable that if Mary dropped the milk, and Sandra left the football, then Bernhard is a lion. It is probable that if Sandra left the football, or Mary dropped the milk, then John went to the bedroom. It is impossible that if Sandra left the football, or Mary dropped the milk, then Antoine is bored.
hypothesis: It is improbable that either John went to the bedroom, or Greg is a frog.
valid_hypothesis: It is probable that either John went to the bedroom, or Greg is a frog.
invalid_hypothesis: It is improbable that either John went to the bedroom, or Greg is a frog.
hypothesis_assertion: Either John went to the bedroom, or Greg is a frog.