Two children stand atop a dirt mound in front of several cardboard boxes, a yellow backhoe is pictured to the left and a blue dump-truck is parked in the background.
The kids are playing king of the mountain.
Children stand atop a mound does not imply  playing king of the mountain.
exists e3 e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_background(x10) & n_left(x8) & in(e3,x10) & Theme(e3,x9) & v_park(e3) & n_dump-truck(x9) & a_blue(s3) & Theme(s3,x9) & to(e2,x8) & Theme(e2,x7) & v_picture(e2) & n_backhoe(x7) & a_yellow(s2) & Theme(s2,x7) & atop(e1,x2) & in(x2,x4) & of(x4,x5) & n_box(x5) & of(x5,x6) & n_cardboard(x6) & a_several(s1) & Theme(s1,x5) & n_front(x4) & n_mound(x2) & of(x2,x3) & n_dirt(x3) & Actor(e1,x1) & v_stand(e1) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_mountain(x3) & n_kid(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & of(x2,x3) & n_king(x2))