People visiting a historical building.
The people are tourists.
People who visit historical buildings are tourists.
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_visit(e1) & n_building(x3) & a_historical(s1) & Theme(s1,x3) & (x1 = x2) & n_people(x1))
exists p1 x1.(n_people(x1) & exists x2.((x1 = x2) & n_tourist(x2)))