guy rollerskating on skate ramp
A guy is rollerskating on a skate ramp.
A guy rollerskating does just that.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_ramp(x3) & of(x3,x4) & n_skate(x4) & Actor(e1,x2) & v_rollerskate(e1) & (x1 = x2) & n_guy(x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_ramp(x2) & a_skate(s1) & Theme(s1,x2) & Actor(e1,x1) & v_rollerskate(e1) & n_guy(x1))