( Chemistry ( ( is ( ( the study ) ( of ( ( matter and ) ( its changes ) ) ) ) ) ; ) )
(ROOT (S (NP (NNP Chemistry)) (VP (VBZ is) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NP (NN matter)) (CC and) (NP (PRP$ its) (NNS changes)))))) (: ;)))
Chemistry is the study of matter and its changes;
(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))))))) (. .)))