(S (S (S (BASENP (DT The) (JJ Siberian) (NNS tigers)) (VP (VBP are) (VP (VBN named) (BASENP (NNP Tony) (CC and) (NNP Tatiana))))) (SBAR (IN while) (S (BASENP (DT the) (NNP Sumatran)) (VP (VBZ is) (VP (VBN named) (BASENP (NNP Padang))))))) (PERIOD .))