A man is hiking on a mountaintop on a cloudy day.
A man is walking outdoors.
Hiking implies outdoors.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_day(x3) & a_cloudy(s1) & Theme(s1,x3) & on(e1,x2) & n_mountaintop(x2) & Actor(e1,x1) & v_hike(e1) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_outdoors(x2) & n_man(x1))