A rock climber scales a mountain.
A rock climber descends down the rock.
scales and descends are two different actions
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_scale(e1) & n_mountain(x3) & n_climber(x1) & of(x1,x2) & n_rock(x2))
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_descend(e1) & n_rock(x2) & n_rock(x2) & n_climber(x1) & of(x1,x2))