( ( ( The ( sun 's ) ) energy ) ( ( ( comes ( to us ) ) ( as light ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN sun) (POS 's)) (NN energy)) (VP (VBZ comes) (PP (TO to) (NP (PRP us))) (PP (IN as) (NP (NN light)))) (. .)))
The sun's energy comes to us as light.
(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))))))) (. .)))