Soccer players are shaking each others hands on the soccer field.
Soccer players are shaking each others hands on the soccer field before the big game.
Soccer players shaking hands does not imply it is before the game.
exists x2 x6 x7.(n_field(x6) & of(x6,x7) & n_soccer(x7) & n_person(x2) & all x1.((-(x1 = x2) & n_person(x1)) -> exists e1 x3 x4 x5.(on(e1,x6) & Time(e1,x1) & Theme(e1,x5) & Actor(e1,x3) & v_shake(e1) & n_hand(x5) & n_player(x3) & (x3 = x4) & ne_nam_soccer(x4))))
exists s1 x2 x6 x7 x8.(n_game(x8) & a_big(s1) & Theme(s1,x8) & n_field(x6) & of(x6,x7) & n_soccer(x7) & n_person(x2) & all x1.((-(x1 = x2) & n_person(x1)) -> exists e1 x3 x4 x5.(before(e1,x8) & on(e1,x6) & Time(e1,x1) & Theme(e1,x5) & Actor(e1,x3) & v_shake(e1) & n_hand(x5) & n_player(x3) & (x3 = x4) & ne_nam_soccer(x4))))