A city street is illuminated by lamps at night.
a city is well lit at night
illuminated by lamps can be replaced by well lit.
exists e1 x1 x2 x3 x4.(at(e1,x4) & n_night(x4) & Actor(e1,x3) & n_lamp(x3) & Theme(e1,x1) & v_illuminate(e1) & n_street(x1) & of(x1,x2) & n_city(x2))
exists s1 x1 x2.(at(s1,x2) & n_night(x2) & r_well(s1) & Theme(s1,x1) & a_lit(s1) & n_city(x1))