A group of people are on a canyon.
People are hiking to the bottom of the canyon.
They are going to the bottom.
exists p1 x1 x2.(exists x3.(on(x1,x3) & n_canyon(x3)) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(n_canyon(x3) & n_bottom(x2) & to(e1,x2) & of(x2,x3) & Actor(e1,x1) & v_hike(e1) & n_people(x1))