Several children running across a field of white sand.
The children are at the beach.
Sand does not have to be located at the beach.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & across(e1,x3) & of(x3,x4) & n_sand(x4) & a_white(s2) & Theme(s2,x4) & n_field(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_child(x1) & a_several(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_beach(x2) & n_child(x1) & at(x1,x2))