The girl is swimming is a blue-green ocean.
The girl is in the pacific ocean.
The ocean may not be the pacific.
exists p1 p2 x1 x2.(n_girl(x1) & exists s1 x4.((x1 = x4) & n_ocean(x4) & a_blue-green(s1) & Theme(s1,x4)) & exists x3.((x2 = x3) & n_swimming(x3)) & (x1 = x2))
exists p1 s1 x1 x2.(n_ocean(x2) & a_pacific(s1) & Theme(s1,x2) & n_girl(x1) & in(x1,x2))