Question: Which parallel corpora are used?
Answer: English (EN) and German (DE) sections of the CoNLL 2009 corpus BIBREF13, EN-DE section of the Europarl corpus BIBREF14
Alternative answer: the English (EN) and German (DE) sections of the CoNLL 2009 corpus BIBREF13 , and EN-DE section of the Europarl corpus BIBREF14