context: We believe that Bernhard is a swan. It is probable that Brian is a frog. It is likely that Jessica is a wolf. It is probably the case that if Bernhard is a swan, and Brian is a frog, then Julius is a rhino. It is probably not the case that if Jessica is a wolf, and Brian is a frog, then Mary dropped the milk. It is likely that if Jessica is a wolf, or Bernhard is a swan, then Greg is a lion.
hypothesis: Chances are about even that jessica is a wolf, and Brian is a frog.
valid_hypothesis: Chances are about even that jessica is a wolf, and Brian is a frog.
invalid_hypothesis: It is impossible that jessica is a wolf, and Brian is a frog.
hypothesis_assertion: Jessica is a wolf, and Brian is a frog.