Here is a picture of a people in a sports stadium.
Some people are cleaning the stadium.
The fact that people are in a sports stadium doesn't imply they are cleaning the stadium.
exists s1 x1 x2 x3 x4.(Theme(s1,x1) & a_here(s1) & of(x1,x2) & in(x2,x3) & n_stadium(x3) & of(x3,x4) & n_sport(x4) & n_people(x2) & n_picture(x1))
exists e1 x1 x2.(n_stadium(x2) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & n_people(x1))