Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Washington, D.C. metropolitan area | Statement: [Washington National Opera, serviceArea, Washington, D.C. metropolitan area]

Target entity: Washington, D.C. metropolitan area
Context triple: [Washington National Opera, serviceArea, Washington, D.C. metropolitan area]

• A. Baltimore–Washington metropolitan area
  The Baltimore–Washington metropolitan area is a major combined urban region in the Mid-Atlantic United States centered on the cities of Baltimore, Maryland, and Washington, D.C., known for its dense population, federal government presence, and diverse economy.
• B. Washington metropolitan area chosen
  The Washington metropolitan area is a major U.S. urban region centered on the nation’s capital, encompassing Washington, D.C. and its surrounding suburbs in Maryland, Virginia, and West Virginia.
• C. Metropolregion MD
  Metropolregion MD is a central German metropolitan region encompassing major cities and economic centers in the states of Saxony, Saxony-Anhalt, and Thuringia, focused on regional development and cooperation.
• D. Washington, D.C.
  Washington, D.C. is the capital city of the United States, serving as the nation’s political center and home to its federal government institutions.
• E. Alexandria, Virginia
  Alexandria, Virginia is a historic independent city just south of Washington, D.C., known for its well-preserved Old Town waterfront, colonial-era architecture, and role as a major port and community along the Potomac River.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.