The skier is on the snow.
the man is warming up to bat.
You would be up to bat while playing baseball and you do not play baseball in the snow.
exists p1 x1 x2.(n_snow(x2) & n_skier(x1) & on(x1,x2))
exists e1 s1 x1 x2.(n_man(x1) & a_up(s1) & Manner(e1,s1) & to(e1,x2) & n_bat(x2) & Actor(e1,x1) & v_warm(e1))