Professional skier on snowy mountain.
a skier is about to show a crowd how it is done
Just because a skier is on a mountain doesn't mean that they are about to show anything to crowd.
exists s1 s2 x1 x2.(a_topic(x1) & on(x1,x2) & n_mountain(x2) & a_snowy(s2) & Theme(s2,x2) & n_skier(x1) & a_professional(s1) & Theme(s1,x1))
exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1 p2 x2.(exists e2.(Theme(e2,x1) & v_do(e2)) & how(e1,p2) & Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & n_crowd(x2)) & n_thing(x1) & n_skier(x1))