( ( ( The program ) ( ( uses ( axial scans ) ) ( to segment ) ) ) ( ( the brain ) ( ( scans ( into ( ( ( ( ( gray matter ) , ) ( white matter ) ) and ) CSF ) ) ) . ) ) )
(ROOT (S (S (NP (DT The) (NN program)) (VP (VBZ uses) (NP (JJ axial) (NNS scans)) (PP (TO to) (NP (NN segment))))) (NP (DT the) (NN brain)) (VP (VBZ scans) (PP (IN into) (NP (NP (JJ gray) (NN matter)) (, ,) (NP (JJ white) (NN matter)) (CC and) (NP (NNP CSF))))) (. .)))
The program uses axial scans to segment the brain scans into gray matter, white matter and CSF.
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (DT the) (JJ gray) (NN matter)))) (VP (VBZ is) (PP (IN on) (NP (NP (DT the) (NN surface)) (PP (IN of) (NP (DT the) (NN brain))))) (, ,) (S (VP (VBG surrounding) (NP (JJ white) (NN matter))))) (. .)))