context: There is a very good chance that Greg is a frog. There is almost no chance that Brian is white. There is almost no chance that Julius is green.
hypothesis: It is impossible that brian is white, and Julius is green.
valid_hypothesis: It is impossible that brian is white, and Julius is green.
invalid_hypothesis: We believe that brian is white, and Julius is green.
hypothesis_assertion: Brian is white, and Julius is green.