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: Key Bridge (Potomac River) | Statement: [Chain Bridge (Potomac River), situatedUpstreamOf, Key Bridge (Potomac River)]

Target entity: Key Bridge (Potomac River)
Context triple: [Chain Bridge (Potomac River), situatedUpstreamOf, Key Bridge (Potomac River)]

• A. Chain Bridge (Potomac River)
  Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
• B. 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.
• C. Union Bridge, Maryland
  Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
• D. 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.
• E. Powhite Parkway Bridge
  The Powhite Parkway Bridge is a major toll bridge in Richmond, Virginia, carrying the Powhite Parkway across the James River as part of a key commuter route into the city.
• 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: Key Bridge (Potomac River)
Triple: [Chain Bridge (Potomac River), situatedUpstreamOf, Key Bridge (Potomac River)]

Key Bridge (Potomac River) is a historic arched bridge in Washington, D.C., carrying U.S. Route 29 across the Potomac River between Georgetown and Arlington.

Target entity: Key Bridge (Potomac River)
Target entity description: Key Bridge (Potomac River) is a historic arched bridge in Washington, D.C., carrying U.S. Route 29 across the Potomac River between Georgetown and Arlington.

• A. Chain Bridge (Potomac River)
  Chain Bridge is a historic vehicular and pedestrian bridge spanning the Potomac River between Washington, D.C., and Virginia, known for its strategic location and multiple reconstructions since the early 19th century.
• B. 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.
• C. Union Bridge, Maryland
  Union Bridge, Maryland is a small historic town in Carroll County known for its railroad heritage and rural community character.
• D. 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.
• E. Powhite Parkway Bridge
  The Powhite Parkway Bridge is a major toll bridge in Richmond, Virginia, carrying the Powhite Parkway across the James River as part of a key commuter route into the city.
• F. None of above. chosen