( Chemistry ( ( ( is ( ( the study ) ( of ( ( matter and ) ( the changes ) ) ) ) ) ( that ( it undergoes ) ) ) . ) )
(ROOT (S (NP (NNP Chemistry)) (VP (VBZ is) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NP (NN matter)) (CC and) (NP (DT the) (NNS changes))))) (SBAR (IN that) (S (NP (PRP it)) (VP (VBZ undergoes))))) (. .)))
Chemistry is the study of matter and the changes that it undergoes.
(ROOT (S (NP (NNP Chemistry)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NN matter))))))) (. .)))