There is a large crowd in front of a building.
They are in front of the building.
Both subjects are in front of a building.
exists p1 x1 s1 x2 x3 x4.((x1 = x2) & in(x2,x3) & of(x3,x4) & n_building(x4) & n_front(x3) & n_crowd(x2) & a_large(s1) & Theme(s1,x2))
exists p1 x1 x3.(n_building(x3) & n_thing(x1) & exists x2.(in(x1,x2) & of(x2,x3) & n_front(x2)))