A group of people stare at a building.
The group of people are lost looking for a building.
The people stare at the building but they aren't necessarily lost and looking for a building.
exists e1 x1 x2 x3.(at(e1,x3) & n_building(x3) & Actor(e1,x1) & v_stare(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e2 e1 x1 x2 x3.(n_group(x1) & for(e1,e2) & for(e2,x3) & n_building(x3) & Actor(e2,x1) & v_look(e2) & Theme(e1,x1) & v_lose(e1) & of(x1,x2) & n_people(x2))