context: There is a better than even chance that Lily is yellow. There is a better than even chance that Bernhard is a frog. It is highly unlikely that Sandra took the milk. It is certain that if Sandra took the milk, or Lily is yellow, then Greg is gray. It is likely that if either Bernhard is a frog, or Lily is yellow, then John moved to the office. Chances are about even that if either Bernhard is a frog, or Sandra took the milk, then Brian is a lion.
hypothesis: There is a better than even chance that either John moved to the office, or Greg is gray.
valid_hypothesis: There is a better than even chance that either John moved to the office, or Greg is gray.
invalid_hypothesis: There is little chance that either John moved to the office, or Greg is gray.
hypothesis_assertion: Either John moved to the office, or Greg is gray.