A small child is sliding down a slip'n' slide.
The child is outside on the slip'n'slide.
If someone is sliding down a slip'slide then they are on the slip'n'slide
exists e1 s1 s2 x1 x2 x3.(a_down(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_slide(e1) & n_slide(x3) & of(x3,x2) & n_slip'n(x2) & n_child(x1) & a_small(s1) & Theme(s1,x1))
exists s1 x1 x2.(n_slip'n'slide(x2) & n_child(x1) & on(s1,x2) & Theme(s1,x1) & a_outside(s1))