context: There is almost no chance that John moved to the garden. It is certain that Emily is a cat. It is highly likely that Brian is white. It is unlikely that if Brian is white, and John moved to the garden, then Lily is a lion. It is highly unlikely that if John moved to the garden, and Brian is white, then Greg is green. It is almost certain that if Emily is a cat, and John moved to the garden, then Sandra left the milk.
hypothesis: It is probably not the case that either Brian is white, or Sandra left the milk.
valid_hypothesis: It is highly likely that either Brian is white, or Sandra left the milk.
invalid_hypothesis: It is probably not the case that either Brian is white, or Sandra left the milk.
hypothesis_assertion: Either Brian is white, or Sandra left the milk.