context: There is a better than even chance that Lily is a rhino. It is probably the case that Winona is a wolf. It is improbable that Bernhard is a lion. There is a better than even chance that if Lily is a rhino, or Winona is a wolf, then Sandra put down the milk. It is probable that if Bernhard is a lion, or Lily is a rhino, then John got the football. There is almost no chance that if Bernhard is a lion, or Lily is a rhino, then Mary went to the office.
hypothesis: Chances are about even that either Lily is a rhino, or Sandra put down the milk.
valid_hypothesis: Chances are about even that either Lily is a rhino, or Sandra put down the milk.
invalid_hypothesis: It is certain that either Lily is a rhino, or Sandra put down the milk.
hypothesis_assertion: Either Lily is a rhino, or Sandra put down the milk.