context: A man walking into a shadow, holding a sign.
hypothesis: It is probably not the case that a man walking into a shadow, holding a sign for a protest.
valid_hypothesis: It is probably not the case that a man walking into a shadow, holding a sign for a protest.
invalid_hypothesis: It is likely that a man walking into a shadow, holding a sign for a protest.
hypothesis_assertion: A man walking into a shadow, holding a sign for a protest.