( ( The uranium ) ( ( ( ( ( ( oxidizes and ) swells ) , ) and ) ( absorbs ( some ( of ( ( the hydrogen ) ( released ( by ( the ( uranium-water reaction ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN uranium)) (VP (VP (VBZ oxidizes)) (CC and) (VP (VBZ swells)) (, ,) (CC and) (VP (VBZ absorbs) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (NN hydrogen)) (VP (VBN released) (PP (IN by) (NP (DT the) (JJ uranium-water) (NN reaction))))))))) (. .)))
The uranium oxidizes and swells, and absorbs some of the hydrogen released by the uranium-water reaction.
(ROOT (S (NP (NNP Water)) (VP (VBZ is) (NP (NP (DT an) (NN oxide)) (PP (IN of) (NP (NN hydrogen))))) (. .)))