Task: Question Answering
Input (English): Generally, adversarial training improves the accuracy across all languages, and the improvement is sometimes dramatic versus the BERT non-adversarial baseline. When combined with adversarial learning, the BERT cross-lingual F1 scores increased for German over the non-adversarial baseline, and the scores remained largely the same for Spanish and Dutch. 
 Question: Does adversarial learning have stronger performance gains for text classification, or for NER?
Output (English): classification