A young boy on the beach running into the ocean waves.
A boy runs.
"A boy runs" is a rephrasing of "a young boy running".
exists e1 s1 x1 x2 x3 x4 x5.(n_wave(x4) & of(x4,x5) & n_ocean(x5) & n_beach(x2) & a_topic(x1) & on(x1,x2) & into(e1,x4) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_boy(x1))