Pedestrians line up for soda and snacks on a rainy day, some with black umbrellas.
The people are in line for snacks.
Pedestrians are people.
exists s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(a_topic(x1) & for(x3,x4) & on(x4,x7) & rel(x7,x8) & with(x8,x9) & n_umbrella(x9) & a_black(s2) & Theme(s2,x9) & n_thing(x8) & n_day(x7) & a_rainy(s1) & Theme(s1,x7) & subset_of(x6,x4) & n_snack(x6) & subset_of(x5,x4) & n_soda(x5) & up(x1,x3) & n_thing(x3) & n_line(x1) & (x1 = x2) & ne_nam_pedestrians(x2))
exists p1 x1.(n_people(x1) & exists x2 x3.(in(x1,x2) & for(x2,x3) & n_snack(x3) & n_line(x2)))