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 crossing | Statement: [Battle of Ball's Bluff, involves, Potomac River crossing]

Target entity: Potomac River crossing
Context triple: [Battle of Ball's Bluff, involves, Potomac River crossing]

• A. Clara Barton Parkway Potomac River crossing
  Clara Barton Parkway Potomac River crossing is a roadway bridge that carries the Clara Barton Parkway across the Potomac River as part of the network of approaches into Washington, D.C.
• B. Union Bridge, Maryland
  Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
• C. Rockville Bridge
  Rockville Bridge is a historic Pennsylvania railroad bridge renowned as one of the longest stone masonry arch bridges in the world.
• D. Severn River Bridge
  The Severn River Bridge is a major roadway bridge in Maryland that carries U.S. Route 50/301 across the Severn River near Annapolis, serving as a key transportation link between the Baltimore–Washington area and Maryland’s Eastern Shore.
• E. Cabin John Bridge
  Cabin John Bridge is a historic stone arch bridge in Maryland that carries traffic across Cabin John Creek near the Potomac River just outside Washington, D.C.
• 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: Potomac River crossing
Triple: [Battle of Ball's Bluff, involves, Potomac River crossing]

The Potomac River crossing at Ball's Bluff was a key Civil War ford and ferry point where Union troops attempted a hazardous river passage that led to the Battle of Ball's Bluff in 1861.

Target entity: Potomac River crossing
Target entity description: The Potomac River crossing at Ball's Bluff was a key Civil War ford and ferry point where Union troops attempted a hazardous river passage that led to the Battle of Ball's Bluff in 1861.

• A. Clara Barton Parkway Potomac River crossing
  Clara Barton Parkway Potomac River crossing is a roadway bridge that carries the Clara Barton Parkway across the Potomac River as part of the network of approaches into Washington, D.C.
• B. Union Bridge, Maryland
  Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
• C. Rockville Bridge
  Rockville Bridge is a historic Pennsylvania railroad bridge renowned as one of the longest stone masonry arch bridges in the world.
• D. Severn River Bridge
  The Severn River Bridge is a major roadway bridge in Maryland that carries U.S. Route 50/301 across the Severn River near Annapolis, serving as a key transportation link between the Baltimore–Washington area and Maryland’s Eastern Shore.
• E. Cabin John Bridge
  Cabin John Bridge is a historic stone arch bridge in Maryland that carries traffic across Cabin John Creek near the Potomac River just outside Washington, D.C.
• F. None of above. chosen