( ( As ( mentioned ( on p. ) ) ) ( ( 183 Hydrogen ) ( ( is ( the ( ( most abundant ) element ) ) ) . ) ) )
(ROOT (S (SBAR (IN As) (S (VP (VBN mentioned) (PP (IN on) (NP (NN p.)))))) (NP (NNP 183) (NNP Hydrogen)) (VP (VBZ is) (NP (DT the) (ADJP (RBS most) (JJ abundant)) (NN element))) (. .)))
As mentioned on p. 183 Hydrogen is the most abundant element.
(ROOT (S (NP (NNP Hydrogen)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ abundant)) (NN element)) (PP (IN in) (NP (DT the) (NN universe))))) (. .)))