Going down the slide at the carnival.
Three siblings use a carnival slide.
Not all are siblings.
exists e1 x1 x2 x3.(n_carnival(x3) & n_slide(x2) & down(e1,x2) & at(x2,x3) & Actor(e1,x1) & v_go(e1) & n_thing(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_slide(x2) & a_carnival(s1) & Theme(s1,x2) & n_sibling(x1) & card_eq_3(x1))