context: We doubt that Gertrude is a mouse. There is little chance that Brian is a lion. It is almost certain that Lily is white. We doubt that if either Lily is white, or Gertrude is a mouse, then Julius is a frog. It is certain that if Lily is white, and Brian is a lion, then Mary moved to the garden. It is probably the case that if Gertrude is a mouse, and Lily is white, then Sandra grabbed the milk.
hypothesis: There is almost no chance that sandra grabbed the milk, and Brian is a lion.
valid_hypothesis: There is almost no chance that sandra grabbed the milk, and Brian is a lion.
invalid_hypothesis: It is highly likely that sandra grabbed the milk, and Brian is a lion.
hypothesis_assertion: Sandra grabbed the milk, and Brian is a lion.