tendentious intervention into the who-wrote-shakespeare controversy . 
(ROOT (NP (NP (JJ tendentious) (NN intervention)) (PP (IN into) (NP (DT the) (SBAR (WHNP (WP who)) (HYPH -) (S (VP (VBN wrote) (HYPH -) (NP (NN shakespeare))))) (NN controversy))) (. .)))
(ROOT (NP (NP (JJ ) (NN )) (PP (IN ) (NP (DT ) (SBAR (WHNP (WP )) (HYPH ) (S (VP (VBN ) (HYPH ) (NP (NN ))))) (NN ))) (. )))