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: [Riverdale Park, Maryland, locatedIn, Washington, D.C. metropolitan area]

Target entity: Washington, D.C. metropolitan area
Context triple: [Riverdale Park, Maryland, locatedIn, 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. Jamestown metropolitan area
  The Jamestown metropolitan area is a U.S. Census-defined region in southwestern New York centered on the city of Jamestown and its surrounding communities.
• D. New York City–Washington, D.C.
  New York City–Washington, D.C. refers to the heavily traveled, fully electrified segment of the Northeast Corridor rail line connecting the two major East Coast cities.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.