This man is surfing.
A man is surfing in the Pacific Ocean.
Not all surfing is done in the Pacific Ocean.
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_surf(e1))
exists e1 x1 x2 x3.(ne_geo_ocean(x2) & (x2 = x3) & ne_geo_pacific(x3) & in(e1,x2) & Actor(e1,x1) & v_surf(e1) & n_man(x1))