( ( One ( such operation ) ) ( ( is ( ( termed ( an ( extensive ( gastric bypass ) ) ) ) ( ( ( where ( ( portions ( of ( the stomach ) ) ) ( are removed ) ) ) and ) ( what ( ( remains ( of ( the stomach ) ) ) ( is ( directly ( connected ( to ( ( the ileum ) ( bypassing ( both ( ( ( the duodenum ) and ) ( the jejunum ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (CD One) (JJ such) (NN operation)) (VP (VBZ is) (VP (VBN termed) (NP (DT an) (JJ extensive) (JJ gastric) (NN bypass)) (SBAR (SBAR (WHADVP (WRB where)) (S (NP (NP (NNS portions)) (PP (IN of) (NP (DT the) (NN stomach)))) (VP (VBP are) (VP (VBN removed))))) (CC and) (SBAR (WHNP (WP what)) (S (NP (NP (NNS remains)) (PP (IN of) (NP (DT the) (NN stomach)))) (VP (VBZ is) (ADJP (RB directly) (JJ connected) (PP (TO to) (NP (NP (DT the) (NN ileum)) (VP (VBG bypassing) (NP (PDT both) (NP (DT the) (NN duodenum)) (CC and) (NP (DT the) (NN jejunum))))))))))))) (. .)))
One such operation is termed an extensive gastric bypass where portions of the stomach are removed and what remains of the stomach is directly connected to the ileum bypassing both the duodenum and the jejunum.
(ROOT (S (NP (JJ Gastric) (NN emptying)) (VP (VBZ is) (VP (VBN regulated) (PP (IN by) (NP (NP (PDT both) (DT the) (NN stomach)) (CC and) (NP (DT the) (NN duodenum)))))) (. .)))