context: It is unlikely that Mary is in the hallway. It is likely that John went to the bedroom. It is improbable that Sandra left the apple.
hypothesis: It is probably not the case that sandra left the apple, or John went to the bedroom.
valid_hypothesis: We believe that sandra left the apple, or John went to the bedroom.
invalid_hypothesis: It is probably not the case that sandra left the apple, or John went to the bedroom.
hypothesis_assertion: Sandra left the apple, or John went to the bedroom.