( Chemistry ( ( is ( all ( about ( studying matter ) ) ) ) . ) )
(ROOT (S (NP (NNP Chemistry)) (VP (VBZ is) (NP (NP (DT all)) (PP (IN about) (S (VP (VBG studying) (NP (NN matter))))))) (. .)))
Chemistry is all about studying matter.
(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))))))) (. .)))