Question: what is the name given to the common currency to the european union
[{'answer': 'The euro'}, {'answer': 'euro'}, {'provenance': [{'wikipedia_id': '24073851', 'title': 'Currencies of the European Union', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 512, 'bleu_score': 0.979484453366057, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14757552557559900141}, 'section': 'Section::::Euro.\n'}]}, {}, {'provenance': [{'wikipedia_id': '1797747', 'title': 'Euro sign', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The euro sign () is the currency sign used for the euro, the official currency of the European Union (EU) and some non-EU countries (Kosovo and Montenegro). The design was presented to the public by the European Commission on 12 December 1996. It consists of a stylized letter E (or epsilon), crossed by two lines instead of one. The character is encoded in Unicode at . In English, the sign precedes the value (for instance, 10, not 10 , unlike most other European languages). In some style guides, the euro sign is not spaced (10).\rhighlight sentence(s) containing evidence, not only the answer', 'The euro sign () is the currency sign used for the euro, the official currency of the European Union (EU) and some non-EU countries (Kosovo and Montenegro). The design was presented to the public by the European Commission on 12 December 1996. It consists of a stylized letter E (or epsilon), crossed by two lines instead of one. The character is encoded in Unicode at . In English, the sign precedes the value (for instance, 10, not 10 , unlike most other European languages). In some style guides, the euro sign is not spaced (10).\rhighlight sentence(s) containing evidence, not only the answer']}}]}, {'provenance': [{'wikipedia_id': '184391', 'title': 'Eurozone', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The eurozone, officially called the euro area, is a monetary union of 19 of the 28 European Union (EU) member states which have adopted the euro () as their common currency and sole legal tender. The monetary authority of the eurozone is the Eurosystem. The other nine members of the European Union continue to use their own national currencies, although most of them are obliged to adopt the euro in the future. The eurozone consists of Austria, Belgium, Cyprus, Estonia, Finland, France, Germany,', 'The eurozone, officially called the euro area, is a monetary union of 19 of the 28 European Union (EU) member states which have adopted the euro () as their common currency and sole legal tender. The monetary authority of the eurozone is the Eurosystem. The other nine members of the European Union continue to use their own national currencies, although most of them are obliged to adopt the euro in the future. The eurozone consists of Austria, Belgium, Cyprus, Estonia, Finland, France, Germany,\rhighlight sentence(s) containing evidence, not only the answer', 'e eurozone consists of Austria, Belgium, Cyprus, Estonia, Finland, France, Germany,\rhighlight sentence(s) containing evidence, not only the answer\r\xa0\rEvidence span Saved.\rYour Evidence Span:\xa0\xa0\r\xa0\rPassage 3\rWikipedia article: Fixed exchange-rate system - Section::::Hybrid exchange rate systems.:Currency substitution.\rstates have adopted']}}]}, {'provenance': [{'wikipedia_id': '21534875', 'title': 'Fixed exchange-rate system', 'section': 'Section::::Hybrid exchange rate systems.:Currency substitution.\n', 'start_paragraph_id': 84, 'end_paragraph_id': 84, 'meta': {'evidence_span': ['tates have adopted the euro () as their common currency (euroization). Their exchange rates are effectively fixed to each other. There are similar examples of countries adopting the U.S. dollar as their domestic currency (dollarization): British Virgin Islands, Caribbean Netherlands, East Timor, Ecuador, El Salvador, Marshall Islands, Federated States of Micronesia, Palau, Panama, Turks and Caicos Islands and Zimbabwe. Monetary co-operation is the mechanism in which two or more monetary policies or exchange rates are linked, and can\rhighlight sentence(s) containing evidence, not only the answer', 'the euro']}}]}]