( Meteorites ( ( are ( critical ( to ( ( our understanding ) ( of ( the ( early ( solar system ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Meteorites)) (VP (VBP are) (ADJP (JJ critical) (PP (TO to) (NP (NP (PRP$ our) (NN understanding)) (PP (IN of) (NP (DT the) (JJ early) (JJ solar) (NN system))))))) (. .)))
Meteorites are critical to our understanding of the early solar system.
(ROOT (S (NP (NNS Meteorites)) (VP (VBP are) (ADVP (RB often)) (VP (VBN comprised) (PP (IN of) (NP (NP (NNS remnants)) (PP (IN of) (NP (NP (DT the) (JJS earliest) (NN material)) (SBAR (WHNP (WDT that)) (S (VP (VBN formed) (PP (IN in) (NP (DT the) (JJ solar) (NN system)))))))))))) (. .)))