context: It is improbable that Mary dropped the milk. It is certain that Bernhard is green. It is unlikely that Sandra left the apple. Chances are slight that if Sandra left the apple, and Mary dropped the milk, then Yann is tired. There is a very good chance that if Mary dropped the milk, and Bernhard is green, then Greg is a swan. It is impossible that if Mary dropped the milk, and Sandra left the apple, then Julius is gray.
hypothesis: Chances are about even that sandra left the apple, and Mary dropped the milk.
valid_hypothesis: There is almost no chance that sandra left the apple, and Mary dropped the milk.
invalid_hypothesis: Chances are about even that sandra left the apple, and Mary dropped the milk.
hypothesis_assertion: Sandra left the apple, and Mary dropped the milk.