A snowboarder wearing orange is going down a mountain.
The person is snowboarding.
a snowboarder is a person, snowboarding is going down a mountain
exists e1 e2 s1 x1 x2 x3.(a_down(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x1) & v_go(e2) & n_mountain(x3) & n_orange(x1) & Actor(e1,x1) & v_wear(e1) & of(x1,x2) & n_snowboarder(x2))
exists e1 x1.(n_person(x1) & Actor(e1,x1) & v_snowboard(e1))