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: lower Potomac River estuarine system | Statement: [St. Mary's River, isPartOf, lower Potomac River estuarine system]

Target entity: lower Potomac River estuarine system
Context triple: [St. Mary's River, isPartOf, lower Potomac River estuarine system]

• A. Potomac River estuary chosen
  The Potomac River estuary is the tidal lower reach of the Potomac River where it broadens and mixes with Chesapeake Bay waters, forming an important ecological and navigational zone between Maryland and Virginia.
• B. Rappahannock River estuary
  The Rappahannock River estuary is a tidal, brackish-water extension of the Rappahannock River that flows into the Chesapeake Bay in eastern Virginia, supporting rich coastal ecosystems and fisheries.
• C. Choptank River estuary
  The Choptank River estuary is a tidal, brackish-water extension of the Choptank River that forms an important ecological and fisheries habitat along Maryland’s Eastern Shore before emptying into the Chesapeake Bay.
• D. New River estuary
  The New River estuary is a coastal inlet in North Carolina where the New River meets the Atlantic-influenced waters near Jacksonville, forming an important habitat for marine and estuarine wildlife.
• E. Wilmington River estuarine system
  The Wilmington River estuarine system is a coastal network of tidal waterways and marshes in coastal Georgia that forms part of the larger Savannah-area estuary complex.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.