A man grips onto his walking stick as he hikes the rough terrain.
An old man is hiking through unexplored territory.
The man hiking may not be old, and the terrain he is on may not be unexplored at all.
exists e1 p1 s1 x1 x2 x3 x4.(n_terrain(x4) & a_rough(s1) & Theme(s1,x4) & exists e2.(Theme(e2,x4) & Actor(e2,x1) & v_hike(e2)) & n_male(x1) & n_male(x1) & as(e1,p1) & onto(e1,x2) & n_stick(x2) & of(x2,x3) & n_walking(x3) & of(x2,x1) & Actor(e1,x1) & v_grip(e1) & n_man(x1))
exists e1 s1 s2 x1 x2.(through(e1,x2) & n_territory(x2) & a_unexplored(s2) & Theme(s2,x2) & Actor(e1,x1) & v_hike(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))