context: There is little chance that John went to the office. It is impossible that Bernhard is yellow. It is impossible that Greg is white.
hypothesis: Chances are about even that greg is white, and John went to the office.
valid_hypothesis: It is impossible that greg is white, and John went to the office.
invalid_hypothesis: Chances are about even that greg is white, and John went to the office.
hypothesis_assertion: Greg is white, and John went to the office.