A little boy stands in the surf.
The little boy is standing in water.
Surf is, in this context, another word for water.
exists e1 s1 x1 x2.(n_surf(x2) & in(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_boy(x1) & a_little(s1) & Theme(s1,x1) & in(e1,x2) & n_water(x2) & Actor(e1,x1) & v_stand(e1))