context: It is impossible that John moved to the office. It is certain that Greg is a rhino. It is unlikely that Sandra got the football.
hypothesis: It is impossible that greg is a rhino, and John moved to the office.
valid_hypothesis: It is impossible that greg is a rhino, and John moved to the office.
invalid_hypothesis: It is probable that greg is a rhino, and John moved to the office.
hypothesis_assertion: Greg is a rhino, and John moved to the office.