A group of four is playing instruments in the street.
A group of people fighting.
one group is playing instruments while the other is fighting
exists e1 x1 x2 x3 x4.(n_street(x4) & in(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_instrument(x3) & of(x1,x2) & n_thing(x2) & card_eq_4(x2) & n_group(x1))
exists e1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & Actor(e1,x3) & v_fight(e1) & (x2 = x3) & n_people(x2) & n_group(x1))