context: It is probably not the case that Mary moved to the garden. Chances are about even that Greg is a frog. Chances are about even that Lily is gray.
hypothesis: There is a better than even chance that lily is gray, or Mary moved to the garden.
valid_hypothesis: There is a better than even chance that lily is gray, or Mary moved to the garden.
invalid_hypothesis: It is impossible that lily is gray, or Mary moved to the garden.
hypothesis_assertion: Lily is gray, or Mary moved to the garden.