A man fishing in the ocean.
A man caught a fish
A man fishing need not caught a fish.
exists x1 x2 x3.(n_ocean(x3) & a_topic(x1) & in(x1,x3) & n_fishing(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_fish(x2) & n_man(x1))