( ( ( ( The ( median ( anterior portion ) ) ) ( of ( the sternum ) ) ) ( in birds ) ) . )
(ROOT (NP (NP (DT The) (JJ median) (NN anterior) (NN portion)) (PP (IN of) (NP (DT the) (NN sternum))) (PP (IN in) (NP (NNS birds))) (. .)))
The median anterior portion of the sternum in birds.
(ROOT (S (NP (DT The) (NN sternum)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (NP (DT the) (JJ elongated) (NN bony) (NN structure)) (SBAR (WHNP (WDT that)) (S (VP (VBZ anchors) (NP (DT the) (JJ anterior) (JJ thoracic) (NN cage))))))))) (. .)))