context: It is likely that Sandra took the football. It is certain that Bernhard is a swan. It is highly likely that Julius is a rhino. It is probably not the case that if Julius is a rhino, or Sandra took the football, then Greg is white. There is almost no chance that if Sandra took the football, and Bernhard is a swan, then Mary went to the garden. It is impossible that if Julius is a rhino, or Bernhard is a swan, then Brian is a lion.
hypothesis: It is almost certain that either Julius is a rhino, or Sandra took the football.
valid_hypothesis: It is probably not the case that either Julius is a rhino, or Sandra took the football.
invalid_hypothesis: It is almost certain that either Julius is a rhino, or Sandra took the football.
hypothesis_assertion: Either Julius is a rhino, or Sandra took the football.