Sooners football player number 50 plays in a game.
A sooners football player eating lunch in the cafateria.
A player who plays,  cannot be eating lunch in a cafeteria at the same time.
exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x6) & n_game(x6) & n_play(x1) & card_eq_50(x1) & of(x1,x5) & n_number(x5) & of(x1,x4) & n_player(x4) & of(x1,x3) & n_football(x3) & of(x1,x2) & n_sooner(x2))
exists e1 x1 x2 x3 x4 x5 x6.(n_cafaterium(x6) & a_topic(x1) & in(e1,x6) & Theme(e1,x5) & Actor(e1,x4) & v_eat(e1) & n_lunch(x5) & (x1 = x4) & n_player(x1) & of(x1,x3) & n_football(x3) & of(x1,x2) & n_sooner(x2))