( ( Decibel ( ( ( ( -LRB- ( 1 -RRB- ) ) ( ( The unit ) ( for ( ( the measurement ) ( of ( ( the intensity ) ( of sound ) ) ) ) ) ) ) , ) ( ( one decibel ) ( representing ( ( the ( faintest sound ) ) ( that ( can ( be ( heard ( by ( the ( human ear ) ) ) ) ) ) ) ) ) ) ) ) ; )
(ROOT (S (VP (VB Decibel) (NP (NP (LST (-LRB- -LRB-) (LS 1) (-RRB- -RRB-)) (NP (DT The) (NN unit)) (PP (IN for) (NP (NP (DT the) (NN measurement)) (PP (IN of) (NP (NP (DT the) (NN intensity)) (PP (IN of) (NP (NN sound)))))))) (, ,) (NP (NP (CD one) (NN decibel)) (VP (VBG representing) (NP (NP (DT the) (JJS faintest) (NN sound)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB be) (VP (VBN heard) (PP (IN by) (NP (DT the) (JJ human) (NN ear))))))))))))) (: ;)))
Decibel (1) The unit for the measurement of the intensity of sound, one decibel representing the faintest sound that can be heard by the human ear;
(ROOT (S (NP (NNP Decibel)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (VP (VBN used) (S (VP (TO to) (VP (VB measure) (NP (NP (DT the) (NN intensity)) (PP (IN of) (NP (JJ sound) (NNS waves)))))))))) (. .)))