context: Chances are about even that John took the milk. We believe that Bernhard is a rhino. It is unlikely that Mary went to the office.
hypothesis: There is little chance that john took the milk, and Mary went to the office.
valid_hypothesis: There is little chance that john took the milk, and Mary went to the office.
invalid_hypothesis: It is highly likely that john took the milk, and Mary went to the office.
hypothesis_assertion: John took the milk, and Mary went to the office.