A child does a handstand on the sand at the beach.
A little boy is playing at the beach.
Not every child who does a handstand is a boy, nor does doing a handstand imply that a child is playing.
exists e1 x1 x2 x3 x4.(n_beach(x4) & n_sand(x3) & at(e1,x4) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_handstand(x2) & n_child(x1))
exists e1 s1 x1 x2.(n_beach(x2) & at(e1,x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))