Two men, dressed in black, are standing on a sidewalk in an urban area while one lights a cigarette.
Neither of the men are willing to smoke a cigarette.
If neither are willing to smoke then one does not light a cigarette.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(all x6.(n_cigarette(x6) -> exists x7.(while(e2,x7) & for(x7,x6) & n_light(x7) & card_eq_1(x7))) & in(e2,x5) & n_area(x5) & a_urban(s2) & Theme(s2,x5) & on(e2,x4) & n_sidewalk(x4) & Actor(e2,x1) & v_stand(e2) & Theme(e1,s1) & Theme(s1,x3) & a_black(s1) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists x2.(n_man(x2) & -exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_willing(s1) & exists e1 x3.(Theme(e1,x3) & Actor(e1,x1) & v_smoke(e1) & n_cigarette(x3)) & of(x1,x2) & n_thing(x1)))