People standing at the starting line of a race.
people at the starting line for a race to the death
People are standing at the starting line of a race but it most likely is not a race to the death.
exists e2 e1 x1 x2 x3 x4.(n_line(x3) & Actor(e2,x3) & v_start(e2) & a_topic(x1) & at(e1,x3) & of(x3,x4) & n_race(x4) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2 x3 x4.(n_death(x4) & n_line(x2) & Actor(e1,x2) & v_start(e1) & a_topic(x1) & at(x1,x2) & for(x2,x3) & to(x3,x4) & n_race(x3) & n_people(x1))