context: The young girl is airborne as she falls into the lake.
hypothesis: There is almost no chance that a girl is falling off a pier, into a lake.
valid_hypothesis: Chances are about even that a girl is falling off a pier, into a lake.
invalid_hypothesis: There is almost no chance that a girl is falling off a pier, into a lake.
hypothesis_assertion: A girl is falling off a pier, into a lake.