people at beach looking for things in sand
The people are inside.
The beach is an outdoor environment.
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 e1 s1 x1.(n_people(x1) & a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_be(e1))