Triple

Target entity: Treaty on European Union
Context triple: [Maastricht Treaty, officialName, Treaty on European Union]

• A. Treaty on European Union chosen
  The Treaty on European Union, commonly known as the Maastricht Treaty, is the foundational agreement that created the modern European Union and introduced the framework for a single currency, common foreign and security policy, and closer political integration among its member states.
• B. Treaty on the Functioning of the European Union
  The Treaty on the Functioning of the European Union is one of the EU’s primary founding treaties, setting out its institutional framework, policy competences, and detailed rules governing the functioning of the Union’s internal market and other key areas.
• C. Treaty of Rome
  The Treaty of Rome is a 1957 international agreement that established the European Economic Community, laying a foundational step toward today’s European Union and its single market.
• D. Treaty of Lisbon
  The Treaty of Lisbon is a 2007 agreement that reformed the European Union’s institutional structure and decision-making processes, enhancing its efficiency, democratic legitimacy, and coherence in external action.
• E. Treaty of Nice
  The Treaty of Nice is a 2001 agreement that reformed the institutional structure of the European Union to prepare for its eastward enlargement.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.