small child sitting on rock alone.
The child is sitting on a rock by the water.
The rock is not necessarily by the water.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & r_alone(x3) & n_rock(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_water(x3) & n_child(x1) & by(e1,x3) & on(e1,x2) & n_rock(x2) & Actor(e1,x1) & v_sit(e1))