A man hang glides over the countryside.
This man has taken hang gliding lessons before.
A man hang gliding over the countryside doesn't mean that the man has taken hang gliding lessons before.
exists x1 x2 x3 x4.(n_countryside(x4) & a_topic(x1) & over(x1,x4) & n_glide(x1) & of(x1,x3) & n_hang(x3) & of(x1,x2) & n_man(x2))
exists e1 e2 s1 x1 x2 x3.(n_man(x1) & for(e1,e2) & a_before(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x1) & v_glide(e2) & n_lesson(x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_hang(x2))