context: It is highly unlikely that Julie moved to the park. There is a very good chance that Brian is a lion. We doubt that Greg is a frog.
hypothesis: It is almost certain that brian is a lion, and Greg is a frog.
valid_hypothesis: It is unlikely that brian is a lion, and Greg is a frog.
invalid_hypothesis: It is almost certain that brian is a lion, and Greg is a frog.
hypothesis_assertion: Brian is a lion, and Greg is a frog.