Task: Question Answering
Input (English): We train both of the systems on the WMT15 German-to-English training data, see Table TABREF18 for some statistics. For this purpose, we use manual alignments provided by RWTH German-English dataset as the hard alignments. 
 Question: What datasets are used?
Output (English): WMT15 German-to-English RWTH German-English dataset