A young girl standing in front of a fountain
The girl  is sitting in the living room.
One can't be sitting and standing at the same time; a living room doesn't usually have a fountain.
exists s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & of(x3,x4) & n_fountain(x4) & n_front(x3) & n_standing(x1) & of(x1,x2) & n_girl(x2) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_room(x2) & of(x2,x3) & n_living(x3) & n_girl(x1) & in(e1,x2) & Actor(e1,x1) & v_sit(e1))