(S (S (NP (BASENP (NNS Doctors)) (PP (IN from) (NP (BASENP (DT the) (NNP Rudolfinerhaus) (NN clinic)) (PP (IN in) (BASENP (NNP Vienna)))))) (VP (VBP say) (SBAR (S (QTL (DQL ``) (NP (EX there))) (VP (VBZ is) (NP (QTR (BASENP (DT no) (NN doubt)) (DQR '')) (SBAR (S (BASENP (JJ Ukrainian) (NN opposition) (NN leader) (NNP Victor) (NNP Yushchenko)) (VP (VBD was) (VP (VBN poisoned) (PP (IN with) (BASENP (NN Dioxin))))))))))))) (PERIOD .))