Boy in sunglasses walking in the ocean.
A boy walkis in the ocean.
A boy walking in the ocean can only walk.
exists e1 s1 x1 x2 x3.(n_ocean(x3) & ne_nam_boy(s1) & a_topic(s1) & in(s1,x1) & in(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_sunglass(x1))
exists x1 x2 x3.(n_ocean(x3) & a_topic(x1) & in(x1,x3) & n_walki(x1) & of(x1,x2) & n_boy(x2))