context: We believe that John moved to the office. There is a very good chance that Greg is green. There is a very good chance that Lily is gray.
hypothesis: Chances are slight that lily is gray, and John moved to the office.
valid_hypothesis: There is a better than even chance that lily is gray, and John moved to the office.
invalid_hypothesis: Chances are slight that lily is gray, and John moved to the office.
hypothesis_assertion: Lily is gray, and John moved to the office.