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: Thomas N. Downing | Statement: [United States House Select Committee on Assassinations, chairperson, Thomas N. Downing]

Target entity: Thomas N. Downing
Context triple: [United States House Select Committee on Assassinations, chairperson, Thomas N. Downing]

• A. Leffert L. Buck
  Leffert L. Buck was an American civil engineer known for his pioneering work in long-span bridge design at the turn of the 20th century.
• B. Alfred B. Mullett
  Alfred B. Mullett was a prominent 19th-century American architect who served as Supervising Architect of the U.S. Treasury and designed numerous notable federal buildings in the Second Empire style.
• C. Charles T. Yerkes
  Charles T. Yerkes was a wealthy American financier and streetcar magnate of the late 19th and early 20th centuries, best known for funding major astronomical and urban transit projects.
• D. Andrew Jackson Downing
  Andrew Jackson Downing was a pioneering 19th-century American landscape designer and writer who helped shape the principles of landscape architecture and suburban garden design in the United States.
• E. J. C. Nichols
  J. C. Nichols was a prominent American real estate developer best known for pioneering large-scale, master-planned residential communities and the Country Club Plaza in Kansas City, Missouri.
• 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: Thomas N. Downing
Triple: [United States House Select Committee on Assassinations, chairperson, Thomas N. Downing]

Thomas N. Downing was an American Democratic congressman from Virginia known for his role in initiating and leading congressional investigations into the assassinations of President John F. Kennedy and Dr. Martin Luther King Jr.

Target entity: Thomas N. Downing
Target entity description: Thomas N. Downing was an American Democratic congressman from Virginia known for his role in initiating and leading congressional investigations into the assassinations of President John F. Kennedy and Dr. Martin Luther King Jr.

• A. Leffert L. Buck
  Leffert L. Buck was an American civil engineer known for his pioneering work in long-span bridge design at the turn of the 20th century.
• B. Alfred B. Mullett
  Alfred B. Mullett was a prominent 19th-century American architect who served as Supervising Architect of the U.S. Treasury and designed numerous notable federal buildings in the Second Empire style.
• C. Charles T. Yerkes
  Charles T. Yerkes was a wealthy American financier and streetcar magnate of the late 19th and early 20th centuries, best known for funding major astronomical and urban transit projects.
• D. Andrew Jackson Downing
  Andrew Jackson Downing was a pioneering 19th-century American landscape designer and writer who helped shape the principles of landscape architecture and suburban garden design in the United States.
• E. J. C. Nichols
  J. C. Nichols was a prominent American real estate developer best known for pioneering large-scale, master-planned residential communities and the Country Club Plaza in Kansas City, Missouri.
• F. None of above. chosen