A group of runners are pictured while running a marathon.
The runners are at a party.
Marathon and party are different.
exists e1 e2 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_run(e2) & n_marathon(x3) & Theme(e1,x1) & v_picture(e1) & of(x1,x2) & n_runner(x2) & n_group(x1))
exists p1 x1.(n_runner(x1) & exists x2.(at(x1,x2) & n_party(x2)))