context: It is probably the case that Mary left the apple. We doubt that Daniel took the football. It is likely that Brian is a swan. It is unlikely that if either Mary left the apple, or Brian is a swan, then John went to the bedroom. It is unlikely that if Brian is a swan, and Daniel took the football, then Greg is green. There is little chance that if either Mary left the apple, or Daniel took the football, then Julius is a frog.
hypothesis: We believe that daniel took the football, or Brian is a swan.
valid_hypothesis: We believe that daniel took the football, or Brian is a swan.
invalid_hypothesis: It is unlikely that daniel took the football, or Brian is a swan.
hypothesis_assertion: Daniel took the football, or Brian is a swan.