Guard standing in front of concrete wall on lawn.
A guard is standing in front of a wall.
Concrete walls are outside so therefore can be on a lawn.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x3) & of(x3,x4) & on(x4,x5) & n_lawn(x5) & n_wall(x4) & a_concrete(s1) & Theme(s1,x4) & n_front(x3) & n_standing(x1) & (x1 = x2) & ne_org_guard(x2))
exists e1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_wall(x3) & n_front(x2) & Actor(e1,x1) & v_stand(e1) & n_guard(x1))