context: We believe that Greg is a lion. It is probably not the case that Daniel grabbed the milk. There is a better than even chance that Emily is a sheep.
hypothesis: Chances are about even that greg is a lion, and Emily is a sheep.
valid_hypothesis: Chances are about even that greg is a lion, and Emily is a sheep.
invalid_hypothesis: It is highly unlikely that greg is a lion, and Emily is a sheep.
hypothesis_assertion: Greg is a lion, and Emily is a sheep.