People walking on a trail in a tree filled park.
they are hiking in the woods
The people on a trail in a tree filled park aren't necessarily in the woods.
exists e2 e1 x1 x2 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x1) & v_fill(e2) & n_park(x5) & in(e1,x4) & n_tree(x4) & on(e1,x3) & n_trail(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2.(n_wood(x2) & n_thing(x1) & in(e1,x2) & Actor(e1,x1) & v_hike(e1))