context: It is impossible that John went to the garden. We doubt that Brian is yellow. There is a better than even chance that Julius is green.
hypothesis: We believe that john went to the garden, or Brian is yellow.
valid_hypothesis: It is unlikely that john went to the garden, or Brian is yellow.
invalid_hypothesis: We believe that john went to the garden, or Brian is yellow.
hypothesis_assertion: John went to the garden, or Brian is yellow.