(S (S (NP (BASENP (NNP Kim) (NNP Dunstan)) (PRN (COMMA ,) (BASENP (NNP Statistics) (NNP NZ) (NN demographer)) (COMMA ,))) (VP (VBD said) (COLON :) (QTL (DQL ``) (S (BASENP (DT The) (JJ dramatic) (NN lifespan) (NNS changes)) (VP (VBD were) (VP (VBN attributed) (PP (TO to) (NP (BASENP (JJ many) (NNS factors)) (COMMA ,) (PP (VBG including) (NP (NP (NP (BASENP (JJ improved) (NN hygiene)) (COMMA ,) (BASENP (NN sanitation))) (COMMA ,) (BASENP (NNS medicines))) (CC and) (BASENP (JJ infectious) (NN disease) (NN control)))))))))))) (PERIOD .))