A man in a white shirt lays cement on a brick wall.
The man is working.
The man who lays cement is working.
exists e1 s1 x1 x2 x3 x4 x5.(on(e1,x4) & n_wall(x4) & of(x4,x5) & n_brick(x5) & Theme(e1,x3) & Actor(e1,x1) & v_lay(e1) & n_cement(x3) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_work(e1))