Three men buskers playing percussion.
The men buskers are performing with their drums.
Playing is an act of performing.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_percussion(x4) & (x1 = x3) & n_busker(x1) & of(x1,x2) & n_man(x2) & card_eq_3(x1))
exists e1 x1 x2 x3.(n_drum(x3) & of(x3,x1) & n_thing(x1) & n_busker(x1) & of(x1,x2) & n_man(x2) & with(e1,x3) & Actor(e1,x1) & v_perform(e1))