context: Chances are slight that Lily is white. There is little chance that Mary left the apple. Chances are about even that John put down the milk. It is probably the case that if Lily is white, or John put down the milk, then Julius is a rhino. It is improbable that if John put down the milk, or Lily is white, then Greg is a frog. There is a better than even chance that if Lily is white, or Mary left the apple, then Brian is a lion.
hypothesis: There is little chance that mary left the apple, or John put down the milk.
valid_hypothesis: There is a better than even chance that mary left the apple, or John put down the milk.
invalid_hypothesis: There is little chance that mary left the apple, or John put down the milk.
hypothesis_assertion: Mary left the apple, or John put down the milk.