whose restatement is validated by the changing composition of the nation 
(ROOT (S (NP (WP$ whose) (NN restatement)) (VP (VBZ is) (VP (VBN validated) (PP (IN by) (NP (NP (DT the) (VBG changing) (NN composition)) (PP (IN of) (NP (DT the) (NN nation)))))))))
(ROOT (S (NP (WP$ ) (NN )) (VP (VBZ ) (VP (VBN ) (PP (IN ) (NP (NP (DT ) (VBG ) (NN )) (PP (IN ) (NP (DT ) (NN )))))))))