Boston Bruins and Pittsburgh Penguins playing ice hockey.
This is an NHL game.
Boston Bruins and Pittsburgh Penguins are teams that are part of NHL.
exists e1 x1 x2 x3 x4 x5 x6 x7.(ne_geo_penguins(x4) & (x4 = x5) & ne_geo_pittsburgh(x5) & ne_geo_bruins(x2) & (x2 = x3) & ne_geo_boston(x3) & Theme(e1,x6) & Actor(e1,x1) & v_play(e1) & n_hockey(x6) & of(x6,x7) & n_ice(x7) & subset_of(x4,x1) & subset_of(x2,x1))
exists p1 x1.(n_thing(x1) & exists s1 x2.((x1 = x2) & n_game(x2) & a_nhl(s1) & Theme(s1,x2)))