Sooners football player number 50 plays in a game.
A sooners football player playing in a bowl game in an indoor stadium.
The first sentence says nothing about what the player (bowl game) is playing or where he is at playing it (indoor stadium).
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 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & in(e1,x7) & n_stadium(x7) & a_indoor(s1) & Theme(s1,x7) & in(e1,x5) & n_game(x5) & of(x5,x6) & n_bowl(x6) & Actor(e1,x4) & v_play(e1) & (x1 = x4) & n_player(x1) & of(x1,x3) & n_football(x3) & of(x1,x2) & n_sooner(x2))