context: It is certain that John took the milk. There is a very good chance that Mary moved to the office. We believe that Brian is white.
hypothesis: There is almost no chance that john took the milk, and Brian is white.
valid_hypothesis: We believe that john took the milk, and Brian is white.
invalid_hypothesis: There is almost no chance that john took the milk, and Brian is white.
hypothesis_assertion: John took the milk, and Brian is white.