two girls in white dresses standing by large horses.
Two girls getting ready to ride horses.
two girls in white dresses standing by large horses does not imply they are getting ready to ride horses.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & by(e1,x4) & n_horse(x4) & a_large(s2) & Theme(s2,x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_dress(x2) & a_white(s1) & Theme(s1,x2) & n_girl(x1) & card_eq_2(x1))
exists e1 p1 x1 x2.(a_topic(x1) & exists p2 s1.(Topic(s1,p2) & Actor(s1,x2) & a_ready(s1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_ride(e2) & n_horse(x3))) & Topic(e1,p1) & Actor(e1,x2) & v_get(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))