A snowboarder jumping in the air off of snow.
A snowboarder is skiing downhill to expand his arsenal.
Is the snowboarder is skiing downhill, he is not jumping in the air.
exists e1 x1 x2 x3 x4.(n_air(x3) & a_topic(x1) & of(e1,x4) & n_snow(x4) & r_off(e1) & in(e1,x3) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_snowboarder(x1))
exists e1 p1 x1 x2 x3 x4.(Topic(e1,p1) & exists e2.(Theme(e2,x4) & Actor(e2,x1) & v_expand(e2)) & n_arsenal(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_ski(e1) & n_downhill(x3) & n_snowboarder(x2) & n_snowboarder(x1))