A little boy rides a bike down a hill on a miniature dirt bike.
The little boy practices to become a professional dirt biker.
Just because a little boy rides a bike down a hill on a miniature dirt bike does not mean he practices to become a professional dirt biker.
exists e1 s1 x1 x2 x3 x4 x5 x6.(down(e1,x3) & on(x3,x4) & n_bike(x4) & of(x4,x6) & n_dirt(x6) & of(x4,x5) & n_miniature(x5) & n_hill(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 s1 x1 x2.(n_practice(x1) & of(x1,x2) & n_boy(x2) & a_little(s1) & Theme(s1,x1) & a_topic(x1) & Topic(x1,p1) & exists e1 s2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_become(e1) & n_biker(x3) & of(x3,x4) & n_dirt(x4) & a_professional(s2) & Theme(s2,x3)))