Two women are sitting against an orange wall behind a few tables covered in food.
Two boys are sitting against a green wall.
Two women is not the same as two men, and neither is the orange wall the same background as the green wall.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(against(e1,x2) & behind(x2,x4) & in(e2,x6) & n_food(x6) & Theme(e2,x5) & v_cover(e2) & (x4 = x5) & n_table(x4) & a_few(s1) & Theme(s1,x4) & n_wall(x2) & of(x2,x3) & n_orange(x3) & Actor(e1,x1) & v_sit(e1) & n_woman(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(against(e1,x2) & n_wall(x2) & a_green(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1) & card_eq_2(x1))