context: There is a better than even chance that Greg is white. There is almost no chance that Mary went to the bedroom. It is probable that Jeff dropped the apple. It is impossible that if Jeff dropped the apple, and Mary went to the bedroom, then John put down the milk. Chances are about even that if either Mary went to the bedroom, or Jeff dropped the apple, then Julius is green. We doubt that if either Greg is white, or Mary went to the bedroom, then Bernhard is a swan.
hypothesis: It is impossible that either Jeff dropped the apple, or Greg is white.
valid_hypothesis: Chances are about even that either Jeff dropped the apple, or Greg is white.
invalid_hypothesis: It is impossible that either Jeff dropped the apple, or Greg is white.
hypothesis_assertion: Either Jeff dropped the apple, or Greg is white.