context: It is probably the case that Julius is a rhino. It is highly likely that Bernhard is a lion. It is impossible that Daniel got the football. It is probable that if Bernhard is a lion, or Daniel got the football, then Greg is yellow. There is almost no chance that if Bernhard is a lion, or Julius is a rhino, then Jessica is a sheep. Chances are about even that if Daniel got the football, or Julius is a rhino, then Brian is a frog.
hypothesis: It is probably not the case that either Brian is a frog, or Daniel got the football.
valid_hypothesis: It is probably not the case that either Brian is a frog, or Daniel got the football.
invalid_hypothesis: We believe that either Brian is a frog, or Daniel got the football.
hypothesis_assertion: Either Brian is a frog, or Daniel got the football.