A group of men sitting on the roof of a building.
A group of men are outside.
If you are on the roof then you are outside
exists e1 x1 x2 x3 x4 x5.(n_roof(x4) & a_topic(x1) & of(x1,x2) & on(e1,x4) & of(x4,x5) & n_building(x5) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_man(x2) & n_group(x1))
exists s1 x1 x2.(Theme(s1,x1) & a_outside(s1) & of(x1,x2) & n_man(x2) & n_group(x1))