Question: what is the name of the currency used in togo
[{'answer': 'West African CFA franc', 'provenance': [{'wikipedia_id': '11322516', 'title': 'Togolese franc', 'start_paragraph_id': 1, 'start_character': 133, 'end_paragraph_id': 1, 'end_character': 155, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11322516', 'title': 'Togolese franc', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 155, 'bleu_score': 0.929712191543383, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16368951137446611530}, 'section': 'Section::::Abstract.'}]}]