context: It is probable that Sandra left the apple. It is probable that John moved to the office. There is little chance that Lily is white. It is certain that if John moved to the office, and Lily is white, then Greg is a frog. It is unlikely that if John moved to the office, and Sandra left the apple, then Jeff went to the kitchen. It is probably the case that if either John moved to the office, or Lily is white, then Bernhard is a lion.
hypothesis: Chances are about even that either John moved to the office, or Sandra left the apple.
valid_hypothesis: Chances are about even that either John moved to the office, or Sandra left the apple.
invalid_hypothesis: It is impossible that either John moved to the office, or Sandra left the apple.
hypothesis_assertion: Either John moved to the office, or Sandra left the apple.