( ( ( ( ( Energy sources ) , ) ( such ( as ( ( ( ( ( ( ( ( ( ( ( ( fossil fuels ) , ) wind ) , ) hydroelectric ) , ) nuclear ) , ) solar ) , ) and ) tidal ) ) ) ) , ) ( ( will ( be ( discussed ( in ( terms ( of ( ( their ( supply ( , ( ( cost and ) effects ) ) ) ) ( on ( the environment ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Energy) (NNS sources)) (, ,) (PP (JJ such) (IN as) (NP (NP (JJ fossil) (NNS fuels)) (, ,) (NP (NN wind)) (, ,) (NP (JJ hydroelectric)) (, ,) (NP (JJ nuclear)) (, ,) (NP (JJ solar)) (, ,) (CC and) (NP (JJ tidal)))) (, ,)) (VP (MD will) (VP (VB be) (VP (VBN discussed) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NP (PRP$ their) (NN supply) (, ,) (NN cost) (CC and) (NNS effects)) (PP (IN on) (NP (DT the) (NN environment)))))))))) (. .)))
Energy sources, such as fossil fuels, wind, hydroelectric, nuclear, solar, and tidal, will be discussed in terms of their supply, cost and effects on the environment.
(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))))) (. .)))