( ( In ( ( the ( short ( five years ) ) ) ( since ( the ( Earth Summit ) ) ) ) ) ( , ( ( another ( 40,000 species ) ) ( ( have ( become extinct ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT the) (JJ short) (CD five) (NNS years)) (PP (IN since) (NP (DT the) (NNP Earth) (NNP Summit))))) (, ,) (NP (DT another) (CD 40,000) (NNS species)) (VP (VBP have) (VP (VBN become) (S (ADJP (JJ extinct))))) (. .)))
In the short five years since the Earth Summit, another 40,000 species have become extinct.
(ROOT (S (NP (EX There)) (VP (VBP have) (VP (VBN been) (NP (CD five) (JJ major) (JJ massive) (NNS extinctions)) (SBAR (IN since) (S (NP (NN life)) (VP (VBD began) (PP (IN on) (NP (NN earth)))))))) (. .)))