amateurish , quasi-improvised acting exercise 
(ROOT (NP (JJ amateurish) (, ,) (ADJP (JJ quasi) (HYPH -) (VBN improvised)) (NN acting) (NN exercise)))
(ROOT (NP (JJ ) (, ) (ADJP (JJ ) (HYPH ) (VBN )) (NN ) (NN )))