(S (S (BASENP (DT The) (NNP Living) (NNP Planet) (NNP Index)) (VP (VBZ is) (VP (VBN based) (PP (IN on) (NP (NP (BASENP (NN population) (NNS trends)) (PP (IN between) (BASENP (NN 1970) (CC and) (NN 2003)))) (PP (IN of) (NP (BASENP (QP (RB over) (NN 3) (NN 600)) (NNS populations)) (PP (IN of) (NP (NP (QP (ADVP (RBR more) (IN than)) (BASENP (NN 1) (NN 300))) (BASENP (NN vertebrate) (NNS species))) (PP (IN from) (PP (IN around) (BASENP (DT the) (NN world))))))))))))) (PERIOD .))