Question: what is the second largest country in south asia
[{'answer': 'Pakistan', 'provenance': [{'wikipedia_id': '21566765', 'title': 'South Asia', 'start_paragraph_id': 2, 'start_character': 84, 'end_paragraph_id': 2, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]