A boy is smiling whilst standing in front of a swimming pool.
The boy is inside sipping on a soda.
Smiling and sipping are different actions.  Inside and in front of are in different locations.  A swimming pool and a soda are different objects.
exists e1 s1 x1 x2 x3 x4 x5.(in(e1,x3) & of(x3,x4) & n_pool(x4) & of(x4,x5) & n_swimming(x5) & n_front(x3) & Theme(e1,x2) & Actor(e1,x1) & v_smile(e1) & n_standing(x2) & a_whilst(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 s1 x1 x2.(n_boy(x1) & a_inside(s1) & Manner(e1,s1) & on(e1,x2) & n_soda(x2) & Actor(e1,x1) & v_sip(e1))