A skateboarder in a white shirt grabs the side of his skateboard in midair.
A skateboarder is in the air.
To be midair is to be in the air.
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 p1 x1 x2.(n_air(x2) & in(x1,x2) & n_skateboarder(x1))