( they ( ( run ( on ( ( ( ( ( ( wind , ) sunlight ) , ) ( ocean waves ) ) and ) ( organic gas ) ) ) ) . ) )
(ROOT (S (NP (PRP they)) (VP (VBP run) (PP (IN on) (NP (NP (NN wind)) (, ,) (NP (NN sunlight)) (, ,) (NP (NN ocean) (NNS waves)) (CC and) (NP (JJ organic) (NN gas))))) (. .)))
they run on wind, sunlight, ocean waves and organic gas.
(ROOT (S (NP (JJS Most) (NN ocean) (NNS waves)) (VP (VBP are) (VP (VBN caused) (PP (IN by) (NP (NN wind))))) (. .)))