A young girl wearing a multicolored holding an orange ball in her right hand walking through bright green grass behind a house
A young person wanders behind a mansion, ready to play with her friends.
The house that the young girl wanders behind may not be a mansion.  A house can refer to a home of any size. The young girl may also be behind the house for any reason, not just to play with her friends.
exists e1 e3 e2 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(a_topic(x1) & Theme(e3,x3) & Actor(e3,x2) & v_wear(e3) & in(e1,x7) & behind(e2,x10) & n_house(x10) & through(e2,x9) & n_grass(x9) & a_green(s4) & Theme(s4,x9) & a_bright(s3) & Theme(s3,x9) & Actor(e2,x8) & v_walk(e2) & (x7 = x8) & n_hand(x7) & a_right(s2) & Theme(s2,x7) & of(x7,x1) & n_female(x1) & Theme(e1,x5) & Actor(e1,x4) & v_hold(e1) & n_ball(x5) & of(x5,x6) & n_orange(x6) & (x3 = x4) & n_multicolored(x3) & (x1 = x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists p1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & behind(x1,x3) & Topic(s2,p1) & Actor(s2,x4) & a_ready(s2) & exists e1.(with(e1,x5) & Actor(e1,x4) & v_play(e1)) & n_friend(x5) & of(x5,x1) & n_female(x1) & (x3 = x4) & n_mansion(x3) & Time(x1,x2) & n_wander(x2) & n_person(x1) & a_young(s1) & Theme(s1,x1))