a little boy plays in the snow.
The boy is making snowballs
A boy does not have to be making snowballs to plays in the snow.
exists e1 s1 x1 x2.(n_snow(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_snowball(x2))