A man on a white waterskiing ramp on a lake
A man is swimming in the ocean.
A man is swimming in a waterskiing.
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & on(x2,x4) & n_lake(x4) & n_ramp(x2) & of(x2,x3) & n_waterskiing(x3) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(n_ocean(x2) & in(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_man(x1))