A hockey played wearing a black jersey is surrounded by hockey players with white jerseys.
The other hockey players are from a rival team/town.
Just because there is a hockey player wearing a black jersey surrounded by players with white jerseys, it doesn't necessarily mean that the are from a rival team/town.
exists e1 e2 e3 s1 s2 x1 x2 x3 x4 x5 x6.(Actor(e3,x4) & with(x4,x6) & n_jersey(x6) & a_white(s2) & Theme(s2,x6) & n_player(x4) & of(x4,x5) & n_hockey(x5) & Theme(e3,x1) & v_surround(e3) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & n_jersey(x3) & a_black(s1) & Theme(s1,x3) & Theme(e1,x2) & v_play(e1) & (x1 = x2) & n_hockey(x1))
exists p1 x1 x2 x3.(-(x1 = x1) & n_player(x1) & of(x1,x3) & n_hockey(x3) & of(x1,x2) & n_hockey(x2) & exists s1 x4.(from(x1,x4) & n_team/town(x4) & a_rival(s1) & Theme(s1,x4)))