context: There is a very good chance that Greg is a rhino. It is likely that Bernhard is gray. It is improbable that Brian is green.
hypothesis: There is a very good chance that greg is a rhino, or Brian is green.
valid_hypothesis: There is a very good chance that greg is a rhino, or Brian is green.
invalid_hypothesis: We doubt that greg is a rhino, or Brian is green.
hypothesis_assertion: Greg is a rhino, or Brian is green.