A skier pauses on a mountaintop.
A skier is getting go down a mountaintop.
A paused skier cannot go down at the same time
exists e1 x1 x2.(on(e1,x2) & n_mountaintop(x2) & Actor(e1,x1) & v_pause(e1) & n_skier(x1))
exists e2 e1 s1 x1 x2 x3.(a_down(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x1) & v_go(e2) & n_mountaintop(x3) & Actor(e1,x2) & v_get(e1) & (x1 = x2) & n_skier(x1))