People bustle about in a glimmering city at dusk.
People are bustling about at dusk because there is a curfew.
People can be bustling about at dusk for other reasons than a curfew.
exists e2 e1 x1 x2 x3.(r_about(e1) & in(e1,x2) & at(x2,x3) & n_dusk(x3) & n_city(x2) & Actor(e2,x2) & v_glimmer(e2) & Actor(e1,x1) & v_bustle(e1) & n_people(x1))
exists e1 p1 x1 x2 x3.(exists p2 x4 x5.((x4 = x5) & n_curfew(x5)) & because(e1,p1) & at(e1,x3) & n_dusk(x3) & about(e1,x2) & n_thing(x2) & Actor(e1,x1) & v_bustle(e1) & n_people(x1))