A snowboarder at the top of a slope reaches down to grab his board while in midair.
the snowboarder is a girl
Snowboarder need not be a girl.
exists e1 p1 s1 x1 x2 x3 x4.(n_board(x4) & of(x4,x2) & n_male(x2) & n_top(x2) & a_down(s1) & Manner(e1,s1) & Topic(e1,p1) & Actor(e1,x1) & v_reach(e1) & exists e2 x5.(in(e2,x5) & n_midair(x5) & r_while(e2) & Theme(e2,x4) & Actor(e2,x1) & v_grab(e2)) & at(x1,x2) & of(x2,x3) & n_slope(x3) & n_snowboarder(x1))
exists p1 x1.(n_snowboarder(x1) & exists x2.((x1 = x2) & n_girl(x2)))