context: There is a better than even chance that Lily is white. There is little chance that John got the apple. Chances are about even that Yann is tired. It is unlikely that if either John got the apple, or Yann is tired, then Mary went to the garden. It is probable that if either John got the apple, or Yann is tired, then Brian is gray. It is probable that if either John got the apple, or Yann is tired, then Sandra took the milk.
hypothesis: Chances are about even that john got the apple, or Sandra took the milk.
valid_hypothesis: Chances are about even that john got the apple, or Sandra took the milk.
invalid_hypothesis: It is impossible that john got the apple, or Sandra took the milk.
hypothesis_assertion: John got the apple, or Sandra took the milk.