( ( ( ( ( Research ( related ( to ( ( the ( ( chemistry and ) physics ) ) ( of ( planetary ( ( stratospheres and ) tropospheres ) ) ) ) ) ) ) , ) and ) ( ( ( solar ( system matter ) ) ( including ( ( ( ( ( ( ( meteorites , ) asteroids ) , ) comet ) , ) and ) planets ) ) ) ( also ( forms ( ( an ( important component ) ) ( of ( the ( LEP research ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Research)) (VP (VBN related) (PP (TO to) (NP (NP (DT the) (NN chemistry) (CC and) (NN physics)) (PP (IN of) (NP (JJ planetary) (NNS stratospheres) (CC and) (NNS tropospheres))))))) (, ,) (CC and) (S (NP (NP (JJ solar) (NN system) (NN matter)) (PP (VBG including) (NP (NP (NNS meteorites)) (, ,) (NP (NNS asteroids)) (, ,) (NP (NN comet)) (, ,) (CC and) (NP (NNS planets))))) (ADVP (RB also)) (VP (VBZ forms) (NP (NP (DT an) (JJ important) (NN component)) (PP (IN of) (NP (DT the) (NNP LEP) (NN research)))))) (. .)))
Research related to the chemistry and physics of planetary stratospheres and tropospheres, and solar system matter including meteorites, asteroids, comet, and planets also forms an important component of the LEP research.
(ROOT (S (NP (NP (NNS Meteorites)) (, ,) (VP (VBN formed) (PP (IN of) (NP (NN split) (NNS asteroids) (CC or) (NN planetary) (NNS rocks)))) (, ,)) (VP (VBP provide) (NP (NP (NNS clues)) (PP (IN about) (NP (PRP$ our) (JJ solar) (NN system))))) (. .)))