people at beach looking for things in sand
There are people on a sandy beach.
they are at a beach in the sand, so they much be on a sandy beach
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & for(e1,x4) & in(x4,x5) & n_sand(x5) & n_thing(x4) & Actor(e1,x3) & v_look(e1) & (x1 = x3) & at(x1,x2) & n_beach(x2) & n_people(x1))
exists p1 x1 s1 x2 x3.((x1 = x2) & on(x2,x3) & n_beach(x3) & a_sandy(s1) & Theme(s1,x3) & n_people(x2))