context: Two little boys are playing on stairs that have a carpet runner going down them.
hypothesis: It is almost certain that two little boys are pretending they are climbing a large mountain.
valid_hypothesis: Chances are slight that two little boys are pretending they are climbing a large mountain.
invalid_hypothesis: It is almost certain that two little boys are pretending they are climbing a large mountain.
hypothesis_assertion: Two little boys are pretending they are climbing a large mountain.