( This ( ( was ( devised ( to ( ( ( maintain ( the ( human body ) ) ) ( in ( a ( living state ) ) ) ) ( even ( when ( ( ( such ( vital organs ) ) ( as ( ( ( the heart ) and ) lungs ) ) ) ( ( are not ) functioning ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBD was) (VP (VBN devised) (S (VP (TO to) (VP (VB maintain) (NP (DT the) (JJ human) (NN body)) (PP (IN in) (NP (DT a) (VBG living) (NN state))) (SBAR (RB even) (WHADVP (WRB when)) (S (NP (NP (JJ such) (JJ vital) (NNS organs)) (PP (IN as) (NP (NP (DT the) (NN heart)) (CC and) (NP (NNS lungs))))) (VP (VBP are) (RB not) (VP (VBG functioning)))))))))) (. .)))
This was devised to maintain the human body in a living state even when such vital organs as the heart and lungs are not functioning.
(ROOT (S (PP (IN In) (NP (NNS humans))) (, ,) (NP (DT the) (NN heart)) (VP (VBZ is) (NP (DT the) (JJ first) (NN organ) (S (VP (TO to) (VP (VP (VB form)) (CC and) (VP (VB become) (ADJP (JJ functional)))))))) (. .)))