context: It is probably not the case that Greg is a rhino. Chances are slight that Sandra left the apple. It is likely that Julius is white. It is highly unlikely that if Sandra left the apple, or Greg is a rhino, then Lily is white. Chances are slight that if Sandra left the apple, and Julius is white, then Mary went to the office. It is likely that if either Julius is white, or Sandra left the apple, then John is in the bedroom.
hypothesis: There is little chance that either Mary went to the office, or Sandra left the apple.
valid_hypothesis: There is little chance that either Mary went to the office, or Sandra left the apple.
invalid_hypothesis: We believe that either Mary went to the office, or Sandra left the apple.
hypothesis_assertion: Either Mary went to the office, or Sandra left the apple.