A boy on a snowboard leaps through the air.
A boy is snowboarding.
snowboard leaps through the air implies snowboarding
exists e1 x1 x2 x3.(n_air(x3) & through(e1,x3) & Actor(e1,x1) & v_leap(e1) & on(x1,x2) & n_snowboard(x2) & n_boy(x1))
exists e1 x1.(Actor(e1,x1) & v_snowboard(e1) & n_boy(x1))