Two wrestlers competing in a match.
Wrestlers compete for the championship
The wrestlers are not implied to being in a championship.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_match(x3) & Actor(e1,x2) & v_compete(e1) & (x1 = x2) & n_wrestler(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_championship(x2) & for(e1,x2) & Actor(e1,x1) & v_compete(e1) & n_wrestler(x1))