Question: who has been appointed as the new director general of national testing agency
[{'answer': 'Vineet Joshi', 'provenance': [{'wikipedia_id': '55841995', 'title': 'National Testing Agency', 'start_paragraph_id': 1, 'start_character': 246, 'end_paragraph_id': 1, 'end_character': 258, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '55841995', 'title': 'National Testing Agency', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 302, 'bleu_score': 0.9560167778278961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8722378387163846606}, 'section': 'Section::::Abstract.'}]}]