Two girls climbing on a fence.
the girls are climbing
Two girls is the same as the girls.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_fence(x3) & Actor(e1,x2) & v_climb(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists e1 x1.(n_girl(x1) & Actor(e1,x1) & v_climb(e1))