Two children, an older boy and a younger girl, are walking down a sidewalk wearing their winter coats.
The two children are siblings.
boy and girl does not imply siblings
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(for(e1,e2) & Theme(e2,x7) & Actor(e2,x1) & v_wear(e2) & n_coat(x7) & of(x7,x8) & n_winter(x8) & of(x7,x2) & n_thing(x2) & a_down(s3) & Manner(e1,s3) & Theme(e1,x6) & Actor(e1,x1) & v_walk(e1) & n_sidewalk(x6) & subset_of(x3,x1) & subset_of(x5,x3) & n_girl(x5) & r_more(s2) & a_younger(s2) & Theme(s2,x5) & subset_of(x4,x3) & n_boy(x4) & r_more(s1) & a_older(s1) & Theme(s1,x4) & subset_of(x2,x1) & n_child(x2) & card_eq_2(x2))
exists p1 x1.(n_child(x1) & card_eq_2(x1) & exists x2.((x1 = x2) & n_sibling(x2)))