Task: Pos Tagging
Input (English): What is the total length of the river that flows through Slovenia , Croatia , along the northern border of Bosnia and Herzegovina , and through Serbia , discharging into the Danube in Belgrade ?
Output (English): WP VBZ DT JJ NN IN DT NN WDT VBZ IN NNP , NNP , IN DT JJ NN IN NNP CC NNP , CC IN NNP , VBG IN DT NNP IN NNP .