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: Fairfax Stone | Statement: [Potomac River, sourceLocation, Fairfax Stone]

Target entity: Fairfax Stone
Context triple: [Potomac River, sourceLocation, Fairfax Stone]

• A. Rosslyn
  Rosslyn is a major urban business district in Arlington, Virginia, known for its high-rise skyline, corporate offices, and views across the Potomac River to Washington, D.C.
• B. Sever Hall
  Sever Hall is a historic red-brick academic building at Harvard University, known for its distinctive Romanesque architecture and use as a classroom facility.
• C. Sabhal Mòr Ostaig
  Sabhal Mòr Ostaig is a renowned Gaelic-medium college on the Isle of Skye in Scotland, dedicated to the preservation and promotion of Scottish Gaelic language and culture.
• D. Dunfermline Abbey
  Dunfermline Abbey is a historic medieval church and former Benedictine monastery renowned as the burial place of several Scottish kings and queens, including Robert the Bruce.
• E. Silver Hill
  Silver Hill is a small commuter rail station in Weston, Massachusetts, served by the MBTA's Fitchburg Line.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Fairfax Stone
Triple: [Potomac River, sourceLocation, Fairfax Stone]

Fairfax Stone is a historic boundary marker in West Virginia that denotes the traditional source of the North Branch of the Potomac River and once defined colonial land grants.

Target entity: Fairfax Stone
Target entity description: Fairfax Stone is a historic boundary marker in West Virginia that denotes the traditional source of the North Branch of the Potomac River and once defined colonial land grants.

• A. Rosslyn
  Rosslyn is a major urban business district in Arlington, Virginia, known for its high-rise skyline, corporate offices, and views across the Potomac River to Washington, D.C.
• B. Sever Hall
  Sever Hall is a historic red-brick academic building at Harvard University, known for its distinctive Romanesque architecture and use as a classroom facility.
• C. Sabhal Mòr Ostaig
  Sabhal Mòr Ostaig is a renowned Gaelic-medium college on the Isle of Skye in Scotland, dedicated to the preservation and promotion of Scottish Gaelic language and culture.
• D. Dunfermline Abbey
  Dunfermline Abbey is a historic medieval church and former Benedictine monastery renowned as the burial place of several Scottish kings and queens, including Robert the Bruce.
• E. Silver Hill
  Silver Hill is a small commuter rail station in Weston, Massachusetts, served by the MBTA's Fitchburg Line.
• F. None of above. chosen