context: There is a very good chance that Greg is a rhino. It is impossible that Bernhard is yellow. It is highly unlikely that Brian is white.
hypothesis: It is impossible that greg is a rhino, and Bernhard is yellow.
valid_hypothesis: It is impossible that greg is a rhino, and Bernhard is yellow.
invalid_hypothesis: It is highly likely that greg is a rhino, and Bernhard is yellow.
hypothesis_assertion: Greg is a rhino, and Bernhard is yellow.