( ( As ( ( ( the ( hot plasma ) ) ( of ( the plume ) ) ) ( flows ( in ( ( the center ) ( of ( the nozzle ) ) ) ) ) ) ) ( , ( ( the ( ( cooler neutral ) ( gas layer ) ) ) ( ( flows ( along ( the ( outer layer ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN As) (S (NP (NP (DT the) (JJ hot) (NN plasma)) (PP (IN of) (NP (DT the) (NN plume)))) (VP (VBZ flows) (PP (IN in) (NP (NP (DT the) (NN center)) (PP (IN of) (NP (DT the) (NN nozzle)))))))) (, ,) (NP (DT the) (ADJP (NP (JJR cooler)) (JJ neutral)) (NN gas) (NN layer)) (VP (VBZ flows) (PP (IN along) (NP (DT the) (JJ outer) (NN layer)))) (. .)))
As the hot plasma of the plume flows in the center of the nozzle, the cooler neutral gas layer flows along the outer layer.
(ROOT (S (NP (NP (DT The) (JJ outer) (NN layer)) (PP (IN of) (NP (DT the) (NN sun)))) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NN plasma))))) (. .)))