( ( ( An element ) , ) ( such ( as ( carbon ( -LRB- ( which ( is ( absolutely ( critical ( for life ) ) ) ) ) ) ) ) ) )
(ROOT (NP (NP (DT An) (NN element)) (, ,) (PP (JJ such) (IN as) (NP (NP (NN carbon)) (SBAR (S (-LRB- -LRB-) (NP (WDT which)) (VP (VBZ is) (ADJP (RB absolutely) (JJ critical) (PP (IN for) (NP (NN life)))))))))))
An element, such as carbon (which is absolutely critical for life
(ROOT (S (NP (DT All) (NN life)) (VP (VBZ is) (VP (VBN built) (PP (IN around) (NP (DT the) (NN element) (NN carbon))))) (. .)))