Question: what type of currency is used in moldova
[{'answer': 'leu', 'provenance': [{'wikipedia_id': '636476', 'title': 'Moldovan leu', 'start_paragraph_id': 0, 'start_character': 9, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '636476', 'title': 'Moldovan leu', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 200, 'bleu_score': 0.716812651242259, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16871455221491891037}, 'section': 'Section::::Abstract.'}]}]