( ( Renewable energy ) ( ( ( is ( about ( the transition ) ) ) ( that ( we ( need ( to ( ( accomplish ( from ( fossil fuels ) ) ) ( to ( energy ( based ( on ( ( ( ( ( ( ( solar , ) wind ) , ) biofuels ) , ) and ) hydro ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Renewable) (NN energy)) (VP (VBZ is) (PP (IN about) (NP (DT the) (NN transition))) (SBAR (IN that) (S (NP (PRP we)) (VP (VBP need) (S (VP (TO to) (VP (VB accomplish) (PP (IN from) (NP (JJ fossil) (NNS fuels))) (PP (TO to) (NP (NP (NN energy)) (VP (VBN based) (PP (IN on) (NP (NP (JJ solar)) (, ,) (NP (NN wind)) (, ,) (NP (NNS biofuels)) (, ,) (CC and) (NP (NN hydro)))))))))))))) (. .)))
Renewable energy is about the transition that we need to accomplish from fossil fuels to energy based on solar, wind, biofuels, and hydro.
(ROOT (S (NP (NP (NNP Solar)) (CC and) (NP (NN wind))) (VP (VBP are) (ADVP (RB still)) (ADJP (JJ expensive)) (PP (VBN compared) (PP (TO to) (NP (JJ fossil) (NNS fuels))))) (. .)))