A girl demonstrating how to use a staff, in front of a class of martial artists and spectators.
The girl has been going to the class for many years.
Just because she is demonstrating does not mean she has been going to the class for many years.
exists e1 x1 x2 x3.(a_topic(x1) & Topic(e1,x3) & Actor(e1,x2) & v_demonstrate(e1) & n_manner(x3) & exists e2 s1 x4 x5 x6 x7 x8 x9 x10.(in(e2,x6) & of(x6,x7) & of(x7,x8) & subset_of(x10,x8) & n_spectator(x10) & subset_of(x9,x8) & n_artist(x9) & a_martial(s1) & Theme(s1,x9) & n_class(x7) & n_front(x6) & Theme(e2,x5) & Actor(e2,x4) & v_use(e2) & n_staff(x5)) & (x1 = x2) & n_girl(x1))
exists e1 x1 x2 x3.(n_class(x2) & n_girl(x1) & for(e1,x3) & n_year(x3) & n_quantity(x3) & to(e1,x2) & Actor(e1,x1) & v_go(e1))