People are walking down the street in front of a white van.
A few people are walking down the street at night.
Just because people are walking down the street it does not mean it is night.
exists e1 s1 x1 x2 x3 x4.(n_street(x2) & in(e1,x3) & of(x3,x4) & n_van(x4) & a_white(s1) & Theme(s1,x4) & n_front(x3) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 s1 x1 x2 x3.(n_street(x2) & at(e1,x3) & n_night(x3) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & a_few(s1) & Theme(s1,x1))