A group of children and adults walk along a railroad track, flanked by two dogs.
The family is working on the railroad track at their property.
Just because it is a group of children and adults doesn't mean they are family. Just because they are walking along railroad tracks does not make them working, and it certainly does not mean it is their property.
exists e2 e1 x1 x2 x3 x4 x5 x6 x7 x8.(along(e1,x5) & Actor(e2,x8) & n_dog(x8) & card_eq_2(x8) & Theme(e2,x7) & v_flank(e2) & (x5 = x7) & n_track(x5) & of(x5,x6) & n_railroad(x6) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & subset_of(x4,x2) & n_adult(x4) & subset_of(x3,x2) & n_child(x3) & n_group(x1))
exists e1 x1 x2 x3 x4.(n_property(x4) & of(x4,x2) & n_thing(x2) & n_track(x2) & of(x2,x3) & n_railroad(x3) & n_family(x1) & at(e1,x4) & on(e1,x2) & Actor(e1,x1) & v_work(e1))