A group of people are walking down an alleyway.
People are walking down an alley at night.
Walking does not imply it is at night.
exists e1 s1 x1 x2 x3.(a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_walk(e1) & n_alleyway(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_night(x3) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_alley(x2) & n_people(x1))