context: a group of people walking down road heading away from the camera.
hypothesis: It is highly unlikely that a group of guys walk down the road towards a bar, backs facing the camera.
valid_hypothesis: It is highly unlikely that a group of guys walk down the road towards a bar, backs facing the camera.
invalid_hypothesis: There is a very good chance that a group of guys walk down the road towards a bar, backs facing the camera.
hypothesis_assertion: A group of guys walk down the road towards a bar, backs facing the camera.