An African man sitting on a bench is drawing a picture.
An African man sitting on a bench is drawing what he's seeing.
A man could be drawing a picture of anything, not just what he is seeing.
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_draw(e2) & n_picture(x4) & on(e1,x3) & n_bench(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1) & a_african(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(exists e2 e3 x4.(n_thing(x4) & Theme(e3,x4) & Actor(e3,x1) & v_draw(e3) & Theme(e2,x4) & Actor(e2,x1) & v_see(e2)) & n_male(x1) & on(e1,x3) & n_bench(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1) & a_african(s1) & Theme(s1,x1))