context: There is almost no chance that Emily is a wolf. It is certain that Sandra took the milk. It is unlikely that Lily is a lion. There is little chance that if Lily is a lion, and Emily is a wolf, then Mary is in the cinema. It is improbable that if either Sandra took the milk, or Emily is a wolf, then John moved to the garden. Chances are about even that if Emily is a wolf, or Sandra took the milk, then Greg is yellow.
hypothesis: There is a very good chance that either Lily is a lion, or Sandra took the milk.
valid_hypothesis: There is a very good chance that either Lily is a lion, or Sandra took the milk.
invalid_hypothesis: It is impossible that either Lily is a lion, or Sandra took the milk.
hypothesis_assertion: Either Lily is a lion, or Sandra took the milk.