A man stands behind a bar which serves a number of kinds of beer.
There is a man in a bar.
Behind a bar implies in a bar.
exists e1 e2 x1 x2 x3 x4 x5 x6.(behind(e1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_serve(e2) & of(x4,x5) & of(x5,x6) & n_beer(x6) & n_kind(x5) & n_number(x4) & (x2 = x3) & n_bar(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists p1 x1 x2 x3.((x1 = x2) & in(x2,x3) & n_bar(x3) & n_man(x2))