people at beach looking for things in sand
A group of people are searching for someone's lost wedding ring.
just because people are at the beach looking for things in sand doesn't imply they are searching for someone's lost wedding ring.
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 e2 e1 x1 x2 x3 x4 x5.(for(e1,x4) & n_ring(x4) & of(x4,x5) & n_wedding(x5) & Theme(e2,x4) & v_lose(e2) & of(x4,x3) & n_person(x3) & Actor(e1,x1) & v_search(e1) & of(x1,x2) & n_people(x2) & n_group(x1))