context: It is almost certain that Brian is a lion. It is probably not the case that John dropped the milk. There is almost no chance that Bernhard is a swan.
hypothesis: It is likely that brian is a lion, and John dropped the milk.
valid_hypothesis: It is probably not the case that brian is a lion, and John dropped the milk.
invalid_hypothesis: It is likely that brian is a lion, and John dropped the milk.
hypothesis_assertion: Brian is a lion, and John dropped the milk.