context: It is almost certain that Julius is green. It is highly likely that Greg is a lion. There is a very good chance that Brian is a swan.
hypothesis: It is highly unlikely that brian is a swan, and Julius is green.
valid_hypothesis: We believe that brian is a swan, and Julius is green.
invalid_hypothesis: It is highly unlikely that brian is a swan, and Julius is green.
hypothesis_assertion: Brian is a swan, and Julius is green.