A man is catching air while snowboarding.
The man is racing down the snowy slope.
Just because a man is catching air while snowboarding, it doesn't necessarily mean that he is racing down the snowy slope.
exists e2 e1 x1 x2.(while(e1,e2) & Actor(e2,x1) & v_snowboard(e2) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_air(x2) & n_man(x1))
exists e1 s1 s2 x1 x2.(n_slope(x2) & a_snowy(s1) & Theme(s1,x2) & n_man(x1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_race(e1))