Children fight to win a tug-of-war battle.
Children play tug-of-war.
If the children fight to win tug-of-war, they play tug-of-war.
exists p1 s1 x1 x2.(Topic(x1,p1) & exists e1 s2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_win(e1) & n_battle(x3) & a_tug-of-war(s2) & Theme(s2,x3)) & n_fight(x1) & a_.(s1) & Theme(s1,x1) & (x1 = x2) & ne_nam_children(x2) & a_topic(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tug-of-war(x2) & n_child(x1))