A skateboarder in a white shirt grabs the side of his skateboard in midair.
A skateboarder was attempting a new trick.
It doesn't mean that he was doing this trick for the first time, in fact it doesn't mean the trick is new
exists e1 s1 x1 x2 x3 x4 x5.(n_skateboard(x4) & of(x4,x3) & n_male(x3) & n_side(x3) & Theme(e1,x3) & Actor(e1,x1) & v_grab(e1) & of(x3,x4) & in(x4,x5) & n_midair(x5) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_skateboarder(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_attempt(e1) & n_trick(x2) & a_new(s1) & Theme(s1,x2) & n_skateboarder(x1))