Men working on a cylinder in a factory.
Men are in a building.
A factory is a type of building.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_factory(x4) & on(e1,x3) & n_cylinder(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists p1 x1.(exists x2.(in(x1,x2) & n_building(x2)) & n_man(x1))