People are walking down a street.
Pedestrians walk down a city street at night.
We do not know that it is night.
exists e1 x1 x2.(down(e1,x2) & n_street(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 s1 x1 x2 x3 x4.(ne_nam_pedestrians(x1) & at(e1,x4) & n_night(x4) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_street(x2) & of(x2,x3) & n_city(x3))