A skier traveling downhill through mostly untouched snow.
A human traveling
A skier is a person who skies, and human is another term for person. Traveling implies movement, and traveling downhill is a kind of movement skiers perform.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & through(e1,x4) & n_snow(x4) & a_untouched(s1) & Theme(s1,x4) & r_mostly(x4) & Theme(e1,x3) & Actor(e1,x2) & v_travel(e1) & n_downhill(x3) & (x1 = x2) & n_skier(x1))
exists s1 x1.(a_topic(x1) & n_travel(x1) & a_human(s1) & Theme(s1,x1))