context: It is probable that Daniel dropped the milk. Chances are about even that Bernhard is a swan. It is almost certain that Mary went to the school.
hypothesis: It is certain that mary went to the school, or Daniel dropped the milk.
valid_hypothesis: It is certain that mary went to the school, or Daniel dropped the milk.
invalid_hypothesis: There is little chance that mary went to the school, or Daniel dropped the milk.
hypothesis_assertion: Mary went to the school, or Daniel dropped the milk.