A man is attempting a skateboard trick.
The man lands the trick.
We don't necessarily know if the man lands the trick.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_attempt(e1) & n_trick(x2) & of(x2,x3) & n_skateboard(x3) & n_man(x1))
exists e1 x1 x2.(n_trick(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_land(e1))