A man in a gray hat pushes some type of equipment over ice.
There is a man smoothing the ice rink.
Just because a man is pushing equipment over ice does not mean he is smoothing the ice rink.
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_push(e1) & over(x3,x5) & n_ice(x5) & of(x3,x4) & n_equipment(x4) & n_type(x3) & in(x1,x2) & n_hat(x2) & a_gray(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1 x4 x5.(n_rink(x4) & of(x4,x5) & n_ice(x5) & exists e1 x2 x3.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_smooth(e1) & (x2 = x3) & n_man(x2)))