Mountain climbers are setting up their tents.
Mountain climbers are setting up tents on a mountain.
You can not infer they are on the mountain.
exists e1 s1 x1 x2 x3.(a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_set(e1) & n_tent(x3) & of(x3,x1) & n_thing(x1) & n_climber(x1) & (x1 = x2) & ne_nam_mountain(x2))
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_mountain(x4) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_set(e1) & n_tent(x3) & n_climber(x1) & (x1 = x2) & ne_nam_mountain(x2))