context: It is highly likely that John went to the bedroom. It is impossible that Julius is a lion. There is a very good chance that Brian is white. It is certain that if Julius is a lion, or Brian is white, then Daniel took the football. Chances are about even that if either Julius is a lion, or John went to the bedroom, then Mary left the apple. Chances are about even that if John went to the bedroom, and Julius is a lion, then Lily is a swan.
hypothesis: There is a very good chance that lily is a swan, or Daniel took the football.
valid_hypothesis: There is a very good chance that lily is a swan, or Daniel took the football.
invalid_hypothesis: Chances are slight that lily is a swan, or Daniel took the football.
hypothesis_assertion: Lily is a swan, or Daniel took the football.