A black horse with a santa hat on top of it's head pulling a sleigh in the snow with 4 people in the sleigh.
There are people behind the horse.
A black horse is a horse and people are behind the horse if they are in sleigh.
exists p1 s1 x1 x2 x3 x4 x8.(n_snow(x8) & exists e1 x5 x6 x7 x9.((x1 = x5) & in(e1,x7) & n_sleigh(x7) & n_sleigh(x7) & with(e1,x9) & n_people(x9) & n_date(x9) & a_date_day_04(x9) & a_date_day_04(x9) & in(e1,x8) & Theme(e1,x7) & Actor(e1,x6) & v_pull(e1) & (x5 = x6) & n_head(x5)) & with(x1,x2) & on(x2,x4) & of(x4,x1) & n_thing(x1) & n_top(x4) & n_hat(x2) & of(x2,x3) & n_santa(x3) & n_horse(x1) & a_black(s1) & Theme(s1,x1))
exists p1 x1 x3.(n_horse(x3) & exists x2.((x1 = x2) & behind(x2,x3) & n_people(x2)))