Children play on a giant work of art.
Kids are seated at their desks in school.
Desks in school aren't a giant work of art.
exists e1 s1 x1 x2 x3.(on(e1,x2) & of(x2,x3) & n_art(x3) & n_work(x2) & a_giant(s1) & Theme(s1,x2) & Actor(e1,x1) & v_play(e1) & n_child(x1))
exists e1 x1 x2 x3.(in(e1,x3) & n_school(x3) & at(e1,x2) & n_desk(x2) & of(x2,x1) & n_thing(x1) & Theme(e1,x1) & v_seat(e1) & n_kid(x1))