Four elementary-aged children, two boys and two girls, play on a green lawn with a tree and a building in the background.
2 young females and 2 young males are on grass with a tree and building in the background.
2 young females and 2 young males refers to Four elementary-aged children,
exists s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11.(n_background(x11) & a_topic(x1) & rel(x1,x3) & subset_of(x5,x3) & rel(x5,x6) & on(x6,x7) & with(x7,x8) & subset_of(x10,x8) & in(x10,x11) & n_building(x10) & subset_of(x9,x8) & n_tree(x9) & n_lawn(x7) & a_green(s2) & Theme(s2,x7) & n_play(x6) & n_girl(x5) & card_eq_2(x5) & subset_of(x4,x3) & n_boy(x4) & card_eq_2(x4) & n_child(x1) & a_elementary-aged(s1) & Theme(s1,x1) & (x1 = x2) & ne_nam_four(x2))
exists p1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_background(x7) & with(p1,x4) & in(x4,x7) & n_building(x6) & n_tree(x5) & subset_of(x6,x4) & subset_of(x5,x4) & exists x8.(on(x1,x8) & n_grass(x8)) & subset_of(x3,x1) & n_male(x3) & a_young(s2) & Theme(s2,x3) & n_date(x3) & a_date_day_02(x3) & a_date_day_02(x3) & subset_of(x2,x1) & n_female(x2) & a_young(s1) & Theme(s1,x2) & n_date(x2) & a_date_day_02(x2) & a_date_day_02(x2))