context: It is highly unlikely that Sandra left the football. We believe that Brian is a rhino. We doubt that Greg is green.
hypothesis: It is probably not the case that greg is green, or Sandra left the football.
valid_hypothesis: It is probably not the case that greg is green, or Sandra left the football.
invalid_hypothesis: We believe that greg is green, or Sandra left the football.
hypothesis_assertion: Greg is green, or Sandra left the football.