Two people are fencing.
Two people practing for competition
fencing doesnot mean they practing for competition they could be fighting .
exists e1 x1.(Actor(e1,x1) & v_fence(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & for(e1,x3) & n_competition(x3) & Actor(e1,x2) & v_pract(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))