Older men concentrate while playing a game of Dominoes.
Some men competing at a event.
Older men playing dominoes are not always competing at a event
exists e1 e2 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_play(e2) & of(x3,x4) & n_domino(x4) & n_game(x3) & n_thing(e1) & Actor(e1,x1) & v_concentrate(e1) & n_man(x1) & (x1 = x2) & ne_nam_older(x2))
exists e1 x1 x2 x3.(a_topic(x1) & at(e1,x3) & n_event(x3) & Actor(e1,x2) & v_compete(e1) & (x1 = x2) & n_man(x1))