context: There is almost no chance that Mary picked up the apple. There is almost no chance that Jessica is a wolf. There is a very good chance that Greg is a lion. It is likely that if Greg is a lion, or Mary picked up the apple, then Julius is green. It is improbable that if either Greg is a lion, or Mary picked up the apple, then Bernhard is a swan. It is probably the case that if either Mary picked up the apple, or Greg is a lion, then Brian is a lion.
hypothesis: There is almost no chance that either Brian is a lion, or Jessica is a wolf.
valid_hypothesis: Chances are about even that either Brian is a lion, or Jessica is a wolf.
invalid_hypothesis: There is almost no chance that either Brian is a lion, or Jessica is a wolf.
hypothesis_assertion: Either Brian is a lion, or Jessica is a wolf.