Task: Pos Tagging
Input (English): What is the bus system whose major city lies in the state 's Southern Tier region near the Pennsylvania border , in a bowl-shaped valley at the confluence of the Susquehanna and Chenango Rivers ?
Output (English): WP VBZ DT NN NN WP$ JJ NN VBZ IN DT NN POS NNP NNP NN IN DT NNP NN , IN DT JJ NN IN DT NN IN DT NNP CC NNP NNP .