A person is swinging by a cord over the ocean.
A person is by the ocean.
Swinging by a cord over the ocean implies the person is by the ocean.
exists e1 x1 x2 x3.(n_ocean(x3) & over(e1,x3) & by(e1,x2) & n_cord(x2) & Actor(e1,x1) & v_swing(e1) & n_person(x1))
exists p1 x1 x2.(n_ocean(x2) & by(x1,x2) & n_person(x1))