( ( Identification ( of ( ( spectral features ) ( as ( ( sound ( localization cues ) ) ( in ( the ( external ear ) ) ) ) ) ) ) ) ( acoustics . ) )
(ROOT (S (NP (NP (NNP Identification)) (PP (IN of) (NP (NP (JJ spectral) (NNS features)) (PP (IN as) (NP (NP (JJ sound) (NN localization) (NNS cues)) (PP (IN in) (NP (DT the) (JJ external) (NN ear)))))))) (VP (VBZ acoustics)) (. .)))
Identification of spectral features as sound localization cues in the external ear acoustics.
(ROOT (S (NP (DT The) (NNS ears)) (VP (VBP are) (NP (NP (DT an) (JJ external) (NN feature)) (PP (IN in) (NP (JJ human) (NNS beings))) (SBAR (S (VP (VBZ is) (ADJP (JJ responsible) (PP (IN for) (NP (NN balance))))))))) (. .)))