The two children, one with a scarf tied around their forehead, walk down a modeling runway.
The children are siblings.
Two children together are not always siblings.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(n_forehead(x5) & of(x5,x1) & n_thing(x1) & n_child(x1) & card_eq_2(x1) & a_down(s1) & Manner(e2,s1) & Theme(e2,x6) & Actor(e2,x1) & v_walk(e2) & n_runway(x6) & of(x6,x7) & n_modeling(x7) & rel(x1,x2) & with(x2,x3) & around(e1,x5) & Theme(e1,x4) & v_tie(e1) & (x3 = x4) & n_scarf(x3) & n_thing(x2) & card_eq_1(x2))
exists p1 x1.(n_child(x1) & exists x2.((x1 = x2) & n_sibling(x2)))