Three guys playing percussion instruments.
A band looks for their missing instruments.
People cannot be playing instruments while they are missing their instruments.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_instrument(x3) & of(x3,x4) & n_percussion(x4) & (x1 = x2) & n_guy(x1) & card_eq_3(x1))
exists e1 s1 x1 x2.(for(e1,x2) & n_instrument(x2) & a_missing(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_look(e1) & n_band(x1))