( ( ( ( ( Sound energy ) ( is ( ( a form ) ( of ( mechanical energy ) ) ) ) ) and ) ( it ( is ( ( transferred ( through matter ) ) ( as ( waves ( of ( alternating ( ( compression and ) rarefactions ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Sound) (NN energy)) (VP (VBZ is) (NP (NP (DT a) (NN form)) (PP (IN of) (NP (JJ mechanical) (NN energy)))))) (CC and) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN transferred) (PP (IN through) (NP (NN matter))) (PP (IN as) (NP (NP (NNS waves)) (PP (IN of) (S (VP (VBG alternating) (NP (NN compression) (CC and) (NNS rarefactions)))))))))) (. .)))
Sound energy is a form of mechanical energy and it is transferred through matter as waves of alternating compression and rarefactions.
(ROOT (S (PP (IN In) (NP (NN science))) (, ,) (NP (NN sound)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN transfer)) (PP (IN of) (NP (NN energy))))) (PP (IN from) (NP (NP (DT a) (JJ vibrating) (NN object)) (PP (IN in) (NP (NP (NNS waves)) (SBAR (WHNP (WDT that)) (S (VP (VBP travel) (PP (IN through) (NP (NN matter)))))))))))) (. .)))