context: It is probably not the case that Lily is gray. It is improbable that Mary put down the apple. It is highly likely that Brian is a lion.
hypothesis: It is probably the case that brian is a lion, and Lily is gray.
valid_hypothesis: It is probably not the case that brian is a lion, and Lily is gray.
invalid_hypothesis: It is probably the case that brian is a lion, and Lily is gray.
hypothesis_assertion: Brian is a lion, and Lily is gray.