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: Occoquan Dam | Statement: [Occoquan River, hasDam, Occoquan Dam]

Target entity: Occoquan Dam
Context triple: [Occoquan River, hasDam, Occoquan Dam]

• A. Delaware Dam
  Delaware Dam is a flood-control and water-management structure located on the Olentangy River in central Ohio.
• B. West Point Dam
  West Point Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Chattahoochee River, forming West Point Lake on the Alabama–Georgia border.
• C. Monticello Dam
  Monticello Dam is a large concrete arch dam in Napa County, California, that creates Lake Berryessa and provides water storage, flood control, and hydroelectric power.
• D. Holyoke Dam
  Holyoke Dam is a historic hydroelectric dam on the Connecticut River in Holyoke, Massachusetts, known for powering the city’s early industrial development.
• E. Occoquan Reservoir
  Occoquan Reservoir is a man-made lake in Northern Virginia that serves as a major drinking water source and recreational area for the Washington, D.C. metropolitan region.
• 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: Occoquan Dam
Triple: [Occoquan River, hasDam, Occoquan Dam]

Occoquan Dam is a concrete gravity dam in northern Virginia that creates the Occoquan Reservoir, a major regional water supply and flood-control structure for the Washington, D.C. metropolitan area.

Target entity: Occoquan Dam
Target entity description: Occoquan Dam is a concrete gravity dam in northern Virginia that creates the Occoquan Reservoir, a major regional water supply and flood-control structure for the Washington, D.C. metropolitan area.

• A. Delaware Dam
  Delaware Dam is a flood-control and water-management structure located on the Olentangy River in central Ohio.
• B. West Point Dam
  West Point Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Chattahoochee River, forming West Point Lake on the Alabama–Georgia border.
• C. Monticello Dam
  Monticello Dam is a large concrete arch dam in Napa County, California, that creates Lake Berryessa and provides water storage, flood control, and hydroelectric power.
• D. Holyoke Dam
  Holyoke Dam is a historic hydroelectric dam on the Connecticut River in Holyoke, Massachusetts, known for powering the city’s early industrial development.
• E. Occoquan Reservoir
  Occoquan Reservoir is a man-made lake in Northern Virginia that serves as a major drinking water source and recreational area for the Washington, D.C. metropolitan region.
• F. None of above. chosen