Three kids are playing musical instrument in a music concert.
Kids are cooking steaks at a concert.
Playing musical instrument and cooking steaks are different.
exists e1 s1 x1 x2 x3 x4.(in(e1,x3) & n_concert(x3) & of(x3,x4) & n_music(x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & a_musical(s1) & Theme(s1,x2) & n_kid(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_concert(x3) & Theme(e1,x2) & Actor(e1,x1) & v_cook(e1) & n_steak(x2) & n_kid(x1))