Two guys barbecuing, one in blue shirt bending down, while the other in black shorts stands facing his back to the camera.
Two men are cooking hamburgers.
The guys can be barbecuing anything, but they aren't necessarily cooking hamburgers.
exists e1 e2 p1 s1 s2 x1 x2 x3 x4 x5 x7 x8.(n_camera(x8) & n_back(x7) & of(x7,x5) & n_male(x5) & n_other(x5) & exists e4 e3 s3 x6.(for(e3,e4) & Theme(e4,x7) & Actor(e4,x5) & v_face(e4) & to(x7,x8) & Actor(e3,x5) & v_stand(e3) & in(x5,x6) & n_shorts(x6) & a_black(s3) & Theme(s3,x6)) & while(e2,p1) & a_down(s2) & Manner(e2,s2) & Actor(e2,x1) & v_bend(e2) & rel(x1,x3) & in(x3,x4) & n_shirt(x4) & a_blue(s1) & Theme(s1,x4) & n_thing(x3) & card_eq_1(x3) & Actor(e1,x2) & v_barbecue(e1) & (x1 = x2) & n_guy(x1) & card_eq_2(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_hamburger(x2) & a_cooking(s1) & Theme(s1,x2)) & n_man(x1) & card_eq_2(x1))