context: It is impossible that Bernhard is a frog. It is likely that Lily is white. It is highly likely that Fred left the milk. We doubt that if Bernhard is a frog, and Fred left the milk, then Sandra got the football. There is little chance that if Fred left the milk, or Lily is white, then Bill is in the school. It is highly likely that if either Fred left the milk, or Lily is white, then Brian is a rhino.
hypothesis: There is almost no chance that lily is white, or Bernhard is a frog.
valid_hypothesis: It is likely that lily is white, or Bernhard is a frog.
invalid_hypothesis: There is almost no chance that lily is white, or Bernhard is a frog.
hypothesis_assertion: Lily is white, or Bernhard is a frog.