context: Chances are about even that Emily is a sheep. There is a better than even chance that John moved to the garden. Chances are about even that Sandra left the apple. We doubt that if either Emily is a sheep, or Sandra left the apple, then Brian is gray. Chances are about even that if either John moved to the garden, or Sandra left the apple, then Mary went to the bedroom. It is likely that if Emily is a sheep, or Sandra left the apple, then Greg is yellow.
hypothesis: Chances are about even that either Emily is a sheep, or John moved to the garden.
valid_hypothesis: Chances are about even that either Emily is a sheep, or John moved to the garden.
invalid_hypothesis: It is almost certain that either Emily is a sheep, or John moved to the garden.
hypothesis_assertion: Either Emily is a sheep, or John moved to the garden.