A football player is in starting stance just before a play.
A football player is running laps before the game.
One cannot be in starting stance and running laps simultaneously.
exists p1 x1 x2.(exists e1 x3 x4 x5.(in(x1,e1) & r_just(e1) & before(e1,x5) & n_play(x5) & Theme(e1,x4) & Actor(e1,x3) & v_start(e1) & n_stance(x4)) & n_player(x1) & of(x1,x2) & n_football(x2))
exists e1 x1 x2 x3 x4.(n_game(x4) & before(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_run(e1) & n_lap(x3) & n_player(x1) & of(x1,x2) & n_football(x2))