( ( Wave ( energy conversion ) ) ( ( takes ( advantage ( of ( ( the ( ocean waves ) ) ( ( caused primarily ) ( by ( interaction ( of ( winds ( with ( the ( ocean surface ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Wave) (NN energy) (NN conversion)) (VP (VBZ takes) (NP (NP (NN advantage)) (PP (IN of) (NP (NP (DT the) (NN ocean) (NNS waves)) (VP (VBN caused) (ADVP (RB primarily)) (PP (IN by) (NP (NP (NN interaction)) (PP (IN of) (NP (NP (NNS winds)) (PP (IN with) (NP (DT the) (NN ocean) (NN surface)))))))))))) (. .)))
Wave energy conversion takes advantage of the ocean waves caused primarily by interaction of winds with the ocean surface.
(ROOT (S (NP (NNP Ocean) (NNS waves)) (VP (VBP are) (ADVP (RB mainly)) (VP (VBN caused) (PP (IN by) (NP (NN wind))))) (. .)))