context: It is probable that Greg is a rhino. It is certain that Mary went to the office. It is almost certain that Julius is yellow.
hypothesis: It is impossible that greg is a rhino, and Julius is yellow.
valid_hypothesis: It is probable that greg is a rhino, and Julius is yellow.
invalid_hypothesis: It is impossible that greg is a rhino, and Julius is yellow.
hypothesis_assertion: Greg is a rhino, and Julius is yellow.