context: We doubt that Brian is a frog. There is almost no chance that Emily is a sheep. It is highly unlikely that Mary moved to the garden. There is a better than even chance that if Mary moved to the garden, and Emily is a sheep, then Greg is a swan. There is little chance that if either Mary moved to the garden, or Brian is a frog, then Sandra got the milk. Chances are slight that if either Emily is a sheep, or Mary moved to the garden, then Julius is white.
hypothesis: It is highly unlikely that emily is a sheep, or Sandra got the milk.
valid_hypothesis: It is highly unlikely that emily is a sheep, or Sandra got the milk.
invalid_hypothesis: It is almost certain that emily is a sheep, or Sandra got the milk.
hypothesis_assertion: Emily is a sheep, or Sandra got the milk.