( ( The organisation ) ( ( is ( ( drawn ( on ( as ( ( a source ) ( for ( statistics ( on hydropower ) ) ) ) ) ) ) ( for ( ( ( ( authoritative ( world ( energy ( and ( renewable ( energy publications ) ) ) ) ) ) ( such ( as ( the ( REN21 ( Global ( Status Reports ) ) ) ) ) ) ) and ) ( ( IIASA ( Global ( Energy Assessment ) ) ) ( -LRB- ( GEA -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN organisation)) (VP (VBZ is) (VP (VBN drawn) (PP (IN on) (IN as) (NP (NP (DT a) (NN source)) (PP (IN for) (NP (NP (NNS statistics)) (PP (IN on) (NP (NN hydropower))))))) (PP (IN for) (NP (NP (NP (JJ authoritative) (NN world) (NN energy) (CC and) (JJ renewable) (NN energy) (NNS publications)) (PP (JJ such) (IN as) (NP (DT the) (NNP REN21) (NNP Global) (NNPS Status) (NNP Reports)))) (CC and) (NP (NP (NNP IIASA) (NNP Global) (NNP Energy) (NNP Assessment)) (PRN (-LRB- -LRB-) (NP (NNP GEA)) (-RRB- -RRB-))))))) (. .)))
The organisation is drawn on as a source for statistics on hydropower for authoritative world energy and renewable energy publications such as the REN21 Global Status Reports and IIASA Global Energy Assessment (GEA).
(ROOT (S (NP (NNP Hydropower)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (RB widely) (VBN used)) (NN form)) (PP (IN of) (NP (NP (JJ renewable) (NN energy)) (PP (IN in) (NP (DT the) (NN world))))))) (. .)))