Runners competing in a marathon.
People competing in the Boston Marathon.
It cannot be inferred that the marathon is the Boston Marathon.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_marathon(x3) & Actor(e1,x2) & v_compete(e1) & (x1 = x2) & n_runner(x1))
exists e1 x1 x2 x3 x4.(ne_geo_marathon(x3) & (x3 = x4) & ne_geo_boston(x4) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_compete(e1) & (x1 = x2) & n_people(x1))