(S (S (BASENP (NNP Yushchenko)) (VP (VBD was) (VP (VBN taken) (PP (TO to) (NP (NP (BASENP (DT the) (NNP Rudolfinerhaus) (NN clinic)) (PP (IN of) (BASENP (NNP Vienna)))) (COMMA ,) (SBAR (WHADVP (WRB where)) (S (BASENP (PRP he)) (VP (VP (VBD stayed) (PP (IN for) (BASENP (NN four) (NNS days)))) (PP (IN under) (NP (BASENP (NNP Dr.) (NNP Korpan) (POS 's)) (NN care))))))))))) (PERIOD .))