A dirt biker showing his biking skills on an off road course in the woods.
A man is making a dirt biker instructional video.
Just because a dirt biker is showing his biking skills doesn't mean that they are doing an instructional video
(x)
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_video(x2) & a_instructional(s1) & Theme(s1,x2) & of(x2,x4) & n_biker(x4) & of(x2,x3) & n_dirt(x3) & n_man(x1))