Question: what type of currency is used in afghanistan
[{'answer': 'The afghani', 'provenance': [{'wikipedia_id': '188967', 'title': 'Afghan afghani', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '188967', 'title': 'Afghan afghani', 'start_paragraph_id': 1, 'start_character': 26, 'end_paragraph_id': 1, 'end_character': 295, 'bleu_score': 0.543460694974924, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7854777089443629081}, 'section': 'Section::::Abstract.'}]}]