A skier going goes down the mountain.
The skier is outside.
a mountain is outside, and the skier is skiing
exists e2 e1 x1 x2 x3.(n_mountain(x3) & down(e2,x3) & Actor(e2,x1) & v_go(e2) & Actor(e1,x2) & v_go(e1) & (x1 = x2) & n_skier(x1))
exists s1 x1.(n_skier(x1) & Theme(s1,x1) & a_outside(s1))