context: It is probably the case that John left the football. It is unlikely that Brian is a swan. It is highly unlikely that Julius is yellow. It is highly likely that if John left the football, and Brian is a swan, then Greg is a rhino. It is highly unlikely that if John left the football, or Brian is a swan, then Mary dropped the apple. We believe that if either Julius is yellow, or John left the football, then Lily is a frog.
hypothesis: It is likely that either Julius is yellow, or John left the football.
valid_hypothesis: It is likely that either Julius is yellow, or John left the football.
invalid_hypothesis: We doubt that either Julius is yellow, or John left the football.
hypothesis_assertion: Either Julius is yellow, or John left the football.