a plethora of engaging diatribes on the meaning of ` home 
(ROOT (NP (NP (DT a) (NN plethora)) (PP (IN of) (NP (NP (VBG engaging) (NNS diatribes)) (PP (IN on) (NP (NP (DT the) (NN meaning)) (PP (IN of) (`` `) (NP (NN home)))))))))
(ROOT (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (VBG ) (NNS )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (`` ) (NP (NN )))))))))