Factory workers work with yellow packages.
The factory workers are preparing packages for emergency services.
Yellow packages are not necessarily for emergency services.
exists e1 s1 x1 x2 x3.(with(e1,x3) & n_package(x3) & a_yellow(s1) & Theme(s1,x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_factory(x2))
exists e1 x1 x2 x3 x4 x5.(n_worker(x1) & of(x1,x2) & n_factory(x2) & for(e1,x4) & n_service(x4) & of(x4,x5) & n_emergency(x5) & Theme(e1,x3) & Actor(e1,x1) & v_prepare(e1) & n_package(x3))