( ( ( Solar ( Energy Activities ) ) ( ( More and ) more ) ) ( , ( people ( ( are ( coming ( to ( realize ( that ( they ( can ( use ( ( the power ) ( of ( the ( sun ( to ( ( do ( useful work ) ) ( for them ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (NP (NNP Solar) (NNP Energy) (NNPS Activities)) (ADVP (RBR More) (CC and) (RBR more))) (, ,) (NP (NNS people)) (VP (VBP are) (VP (VBG coming) (S (VP (TO to) (VP (VB realize) (SBAR (IN that) (S (NP (PRP they)) (VP (MD can) (VP (VB use) (NP (NP (DT the) (NN power)) (PP (IN of) (NP (DT the) (NN sun) (S (VP (TO to) (VP (VB do) (NP (JJ useful) (NN work)) (PP (IN for) (NP (PRP them)))))))))))))))))) (. .)))
Solar Energy Activities More and more, people are coming to realize that they can use the power of the sun to do useful work for them.
(ROOT (S (PP (IN Over) (NP (NP (CD 90) (NN %)) (PP (IN of) (NP (DT the) (NN energy))))) (NP (PRP we)) (VP (VBP use) (SBAR (S (VP (VBZ comes) (ADVP (RB originally)) (PP (IN from) (NP (DT the) (NN sun))))))) (. .)))