context: It is probably the case that Lily is a swan. It is certain that Mary left the milk. It is almost certain that Daniel dropped the milk.
hypothesis: Chances are slight that daniel dropped the milk, or Mary left the milk.
valid_hypothesis: It is certain that daniel dropped the milk, or Mary left the milk.
invalid_hypothesis: Chances are slight that daniel dropped the milk, or Mary left the milk.
hypothesis_assertion: Daniel dropped the milk, or Mary left the milk.