A child hangs upside down on a ladder while another child swings on a rope.
Children are at the park
The ladder, rope and children could be in any location, nothing implies that they are in a park or any other location.
exists e1 p1 x1 x2 x3 x4 x5 x6.(on(e1,x6) & n_rope(x6) & while(e1,x4) & n_swing(x4) & of(x4,x5) & n_child(x5) & -(x4 = x3) & n_swing(x3) & of(x3,x1) & n_child(x1) & n_child(x1) & on(e1,x2) & n_ladder(x2) & exists s1.(r_upside(s1) & Theme(s1,x1) & a_down(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_hang(e1))
exists p1 x1 x2.(n_park(x2) & at(x1,x2) & n_child(x1))