context: It is likely that Greg is a lion. It is probably the case that Julie moved to the park. We believe that Bernhard is gray.
hypothesis: Chances are about even that either Greg is a lion, or Julie moved to the park.
valid_hypothesis: Chances are about even that either Greg is a lion, or Julie moved to the park.
invalid_hypothesis: There is almost no chance that either Greg is a lion, or Julie moved to the park.
hypothesis_assertion: Either Greg is a lion, or Julie moved to the park.