A woman is swimming underwater.
A lady is swimming is the ocean.
A woman is swimming underwater does not indicate she is swimming is the ocean
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_underwater(x2) & n_woman(x1))
exists e1 p1 x1 x3.(n_ocean(x3) & exists p2 x2.((x2 = x3) & n_swimming(x2)) & Topic(e1,p1) & Actor(e1,x1) & v_be(e1) & n_lady(x1))