A young girl sitting in the grass near a lake.
Billy was next to Susan.
Susan does not sit in grass.
exists e1 s1 x1 x2 x3 x4.(n_grass(x3) & a_topic(x1) & in(e1,x3) & near(x3,x4) & n_lake(x4) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists s1 x1 x2.(ne_geo_susan(x2) & ne_per_billy(x1) & to(s1,x2) & Theme(s1,x1) & a_next(s1))