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: Potomac River at Key Bridge into Washington, D.C. | Statement: [U.S. Route 29 in Virginia, crossesRiver, Potomac River at Key Bridge into Washington, D.C.]

Target entity: Potomac River at Key Bridge into Washington, D.C.
Context triple: [U.S. Route 29 in Virginia, crossesRiver, Potomac River at Key Bridge into Washington, D.C.]

• A. Anacostia River
  The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
• B. Potomac River chosen
  The Potomac River is a major waterway in the Mid-Atlantic United States that flows through the Appalachian region and forms part of the boundary between Maryland, Virginia, and Washington, D.C.
• C. South Branch Potomac River
  The South Branch Potomac River is a major headwater stream of the Potomac River that flows through the Appalachian region of West Virginia and Virginia, known for its scenic valleys, outdoor recreation, and role in the Chesapeake Bay watershed.
• D. Great Falls of the Potomac
  The Great Falls of the Potomac is a dramatic series of rapids and waterfalls where the Potomac River cascades through a narrow, rocky gorge, forming one of the Mid-Atlantic region’s most striking natural landmarks.
• E. North Branch Potomac River
  The North Branch Potomac River is the upper, more remote headwaters section of the Potomac River, flowing along the border of Maryland and West Virginia and supplying a major portion of the Potomac’s overall drainage.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.