(S (NP (NP (BASENP (NNP Ronald) (NNP G.) (NNP Latimer)) (PRN (COMMA ,) (BASENP (NN M.D.)) (COMMA ,))) (PP (IN of) (NP (NP (BASENP (NNP Santa) (NNP Barbara)) (COMMA ,) (BASENP (NNP CA))) (COMMA ,)))) (VP (VBD warned) (QTL (DQL ``) (QTC (S (NP (BASENP (DT The) (NN fact)) (SBAR (IN that) (S (BASENP (NNS surgeons)) (VP (VP (MD may) (VP (VB have) (S (VP (TO to) (VP (VB open) (BASENP (DT the) (NN patient))))))) (CC or) (VP (MD might) (VP (ADVP (RB actually)) (VP (VB need) (S (VP (TO to) (VP (VB revert) (PP (TO to) (BASENP (JJ standard) (JJ laparoscopic) (NNS techniques))))))))))))) (VP (VBZ demands) (SBAR (IN that) (S (S (BASENP (DT this) (JJ basic) (NN training)) (VP (VB be) (BASENP (DT a) (NN requirement)))) (SBAR (IN before) (S (BASENP (DT a) (NN robot)) (VP (VBZ is) (VP (VBN purchased))))))))) (PERIOD .)))))