context: It is probably not the case that Lily is yellow. It is almost certain that Greg is a lion. It is improbable that John dropped the milk.
hypothesis: We believe that greg is a lion, and Lily is yellow.
valid_hypothesis: It is probably not the case that greg is a lion, and Lily is yellow.
invalid_hypothesis: We believe that greg is a lion, and Lily is yellow.
hypothesis_assertion: Greg is a lion, and Lily is yellow.