The men are climbing.
The men are hiking up a mountain.
Just because men are climbing does not mean they are hiking up a mountain.
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_climb(e1))
exists e1 s1 x1 x2.(n_man(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_hike(e1) & n_mountain(x2))