An adult and a child hike through the forest with backpacks.
A lonely man is walking down a road
adult and a child are  two people not lonely man.
exists s1 x1 x2 x3 x4 x5.(n_forest(x4) & a_topic(s1) & subset_of(x2,s1) & through(x2,x4) & with(x4,x5) & n_backpack(x5) & n_hike(x2) & of(x2,x3) & n_child(x3) & subset_of(x1,s1) & n_adult(x1))
exists e1 s1 s2 x1 x2.(a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_road(x2) & n_man(x1) & a_lonely(s1) & Theme(s1,x1))