( ( ( ( ( SOHO ( ( The ( SOHO spacecraft ) ) ( ( began operation ) ( in ( early 1996 ) ) ) ) ) , ) and ) ( we ( ( ( ( participated directly ) ( in ( this program ) ) ) ( through ( ( ( Don ( Hassler 's ) ) role ) ( as co-investigator ) ) ) ) ( in ( ( the ( SUMER project ) ) ( for ( ( studying ( ( the Sun ) ( at ( UV ( and ( EUV wavelengths ) ) ) ) ) ) spectroscopically ) ) ) ) ) ) ) . )
(ROOT (S (S (ADVP (RB SOHO)) (NP (DT The) (NNP SOHO) (NN spacecraft)) (VP (VBD began) (NP (NN operation)) (PP (IN in) (NP (JJ early) (CD 1996))))) (, ,) (CC and) (S (NP (PRP we)) (VP (VBD participated) (ADVP (RB directly)) (PP (IN in) (NP (DT this) (NN program))) (PP (IN through) (NP (NP (NP (NNP Don) (NNP Hassler) (POS 's)) (NN role)) (PP (IN as) (NP (NN co-investigator))))) (PP (IN in) (NP (NP (DT the) (JJ SUMER) (NN project)) (PP (IN for) (S (VP (VBG studying) (NP (NP (DT the) (NNP Sun)) (PP (IN at) (NP (NNP UV) (CC and) (NNP EUV) (NNS wavelengths)))) (ADVP (RB spectroscopically))))))))) (. .)))
SOHO The SOHO spacecraft began operation in early 1996, and we participated directly in this program through Don Hassler's role as co-investigator in the SUMER project for studying the Sun at UV and EUV wavelengths spectroscopically.
(ROOT (S (NP (DT The) (NN soho) (NN spacecraft)) (ADVP (RB first)) (VP (VBD started) (S (VP (TO to) (VP (VB operate) (PP (IN in) (NP (CD 1996))))))) (. .)))