Two men , dressed in black , are standing on a sidewalk in an urban area while one lights a cigarette .
A man is pushing another man down a flight of stairs in an apartment building .
Two men, dressed in black, are standing on a sidewalk in an urban area while one lights a cigarette.
A man is pushing another man down a flight of stairs in an apartment building.
A sidewalk is not a flight of stairs.
A sidewalk is not a flight of stairs .