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