Skiiers at the top of a snow covered hill.
Skiiers preparing to go down the hill.
Skiers can be on a hill without preparing to go down the hill.
exists e1 x1 x2 x3 x4.(n_top(x2) & a_topic(x1) & at(x1,x2) & of(x2,x3) & n_hill(x3) & Theme(e1,x3) & v_cover(e1) & of(x3,x4) & n_snow(x4) & n_skiier(x1))
exists e1 p1 x1 x2 x3.(n_hill(x3) & a_topic(x1) & Topic(e1,p1) & Actor(e1,x2) & v_prepare(e1) & exists e2 s1.(a_down(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x2) & v_go(e2)) & (x1 = x2) & n_skiier(x1))