Person doing a dance on the ocean.
The man is dancing in the water.
A man is a type of person, and doing a dance is a rephrasing of dancing, and on the ocean means in the water.
exists e1 x1 x2 x3.(n_ocean(x3) & ne_nam_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_dance(x2))
exists e1 x1 x2.(n_water(x2) & n_man(x1) & in(e1,x2) & Actor(e1,x1) & v_dance(e1))