A city street is illuminated by lamps at night.
A city street is full of light pollution
A city street is illuminated by lamps at night doesn't mean it causes light pollution
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 s2 x1 x2 x3.(of(s1,x3) & n_pollution(x3) & a_light(s2) & Theme(s2,x3) & Theme(s1,x1) & a_full(s1) & n_street(x1) & of(x1,x2) & n_city(x2))