Two children, an older boy and a younger girl, are walking down a sidewalk wearing their winter coats.
Two children are sitting.
The two children cannot be walking and at the same time sitting.
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 e1 x1.(Actor(e1,x1) & v_sit(e1) & n_child(x1) & card_eq_2(x1))