The two men are playing chess in the park.
The two men are competitive friends.
Not all people playing chess have to be friends.
exists e1 x1 x2 x3.(n_park(x3) & n_man(x1) & card_eq_2(x1) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_chess(x2))
exists p1 x1.(n_man(x1) & card_eq_2(x1) & exists s1 x2.((x1 = x2) & n_friend(x2) & a_competitive(s1) & Theme(s1,x2)))