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: Alexandra Mary Hilda Cadogan | Statement: [John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough, mother, Alexandra Mary Hilda Cadogan]

Target entity: Alexandra Mary Hilda Cadogan
Context triple: [John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough, mother, Alexandra Mary Hilda Cadogan]

• A. Cynthia Curzon
  Cynthia Curzon was a British aristocrat and political figure, the daughter of statesman Lord Curzon, who became closely associated with interwar right-wing politics through her marriage to Oswald Mosley.
• B. Arabella Churchill
  Arabella Churchill was an English noblewoman best known as a longtime mistress of King James II of England and the mother of several of his illegitimate children.
• C. Diana Churchill
  Diana Churchill was the eldest daughter of British Prime Minister Winston Churchill and Clementine Churchill, known for her work as an actress and her involvement in public life during the mid-20th century.
• D. Dorothy Spencer
  Dorothy Spencer was an American film editor known for her work on numerous Hollywood productions from the 1930s through the 1960s.
• E. Kathleen Cavendish, Marchioness of Hartington
  Kathleen Cavendish, Marchioness of Hartington was an American socialite and member of the Kennedy family who married into the British aristocracy and died tragically in a 1948 plane crash.
• 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: Alexandra Mary Hilda Cadogan
Triple: [John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough, mother, Alexandra Mary Hilda Cadogan]

Alexandra Mary Hilda Cadogan was a British aristocrat and socialite who became Duchess of Marlborough through her marriage to John George Vanderbilt Henry Spencer-Churchill.

Target entity: Alexandra Mary Hilda Cadogan
Target entity description: Alexandra Mary Hilda Cadogan was a British aristocrat and socialite who became Duchess of Marlborough through her marriage to John George Vanderbilt Henry Spencer-Churchill.

• A. Cynthia Curzon
  Cynthia Curzon was a British aristocrat and political figure, the daughter of statesman Lord Curzon, who became closely associated with interwar right-wing politics through her marriage to Oswald Mosley.
• B. Arabella Churchill
  Arabella Churchill was an English noblewoman best known as a longtime mistress of King James II of England and the mother of several of his illegitimate children.
• C. Diana Churchill
  Diana Churchill was the eldest daughter of British Prime Minister Winston Churchill and Clementine Churchill, known for her work as an actress and her involvement in public life during the mid-20th century.
• D. Dorothy Spencer
  Dorothy Spencer was an American film editor known for her work on numerous Hollywood productions from the 1930s through the 1960s.
• E. Kathleen Cavendish, Marchioness of Hartington
  Kathleen Cavendish, Marchioness of Hartington was an American socialite and member of the Kennedy family who married into the British aristocracy and died tragically in a 1948 plane crash.
• F. None of above. chosen