tackling what seems like done-to-death material 
(ROOT (S (VP (VBG tackling) (SBAR (WHNP (WP what)) (S (VP (VBZ seems) (PP (IN like) (NP (NML (S (VP (VBN done) (HYPH -) (PP (IN to) (HYPH -) (NP (NN death)))))) (NN material)))))))))
(ROOT (S (VP (VBG ) (SBAR (WHNP (WP )) (S (VP (VBZ ) (PP (IN ) (NP (NML (S (VP (VBN ) (HYPH ) (PP (IN ) (HYPH ) (NP (NN )))))) (NN )))))))))