( ( ( ( ( ( The ( outer layer ) ) ( of ( the Sun ) ) ) , ) ( called ( the corona ) ) ) , ) ( ( emits ( ( ( a stream ) ( of plasma ) ) ( called ( ( the ( solar wind ) ) ( that ( buffets ( the ( entire ( solar system ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ outer) (NN layer)) (PP (IN of) (NP (DT the) (NNP Sun))) (, ,) (VP (VBN called) (NP (DT the) (NN corona))) (, ,)) (VP (VBZ emits) (SBAR (S (NP (NP (DT a) (NN stream)) (PP (IN of) (NP (NN plasma)))) (VP (VBD called) (NP (NP (DT the) (JJ solar) (NN wind)) (SBAR (WHNP (WDT that)) (S (VP (VBZ buffets) (NP (DT the) (JJ entire) (JJ solar) (NN system)))))))))) (. .)))
The outer layer of the Sun, called the corona , emits a stream of plasma called the solar wind that buffets the entire solar system.
(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))))) (. .)))