context: It is probably the case that Brian is green. It is highly unlikely that Greg is a rhino. It is almost certain that John discarded the apple.
hypothesis: It is highly unlikely that greg is a rhino, and Brian is green.
valid_hypothesis: It is highly unlikely that greg is a rhino, and Brian is green.
invalid_hypothesis: It is probably the case that greg is a rhino, and Brian is green.
hypothesis_assertion: Greg is a rhino, and Brian is green.