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: Mary Chester | Statement: [Robert Jenkinson, 2nd Earl of Liverpool, spouse, Mary Chester]

Target entity: Mary Chester
Context triple: [Robert Jenkinson, 2nd Earl of Liverpool, spouse, Mary Chester]

• A. Mary Barstow
  Mary Barstow was the second wife of American illustrator Norman Rockwell and the mother of his three sons.
• B. Mary Darnall
  Mary Darnall was the wife of American Founding Father and Declaration of Independence signer Charles Carroll of Carrollton and a member of a prominent Maryland Catholic family.
• C. Mary Elizabeth Jenkins
  Mary Elizabeth Jenkins, better known as Mary Surratt, was an American boardinghouse owner who became the first woman executed by the U.S. federal government for her role in the conspiracy to assassinate President Abraham Lincoln.
• D. Elizabeth Feake
  Elizabeth Feake was a 17th-century New England colonist known primarily as the wife of military officer and colonial leader John Underhill.
• E. Mary Anne Grindall
  Mary Anne Grindall was the wife of British civil servant, political reformer, and ornithologist Allan Octavian Hume.
• 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: Mary Chester
Triple: [Robert Jenkinson, 2nd Earl of Liverpool, spouse, Mary Chester]

Mary Chester was a British aristocrat best known as the wife of Robert Jenkinson, 2nd Earl of Liverpool, who served as Prime Minister of the United Kingdom in the early 19th century.

Target entity: Mary Chester
Target entity description: Mary Chester was a British aristocrat best known as the wife of Robert Jenkinson, 2nd Earl of Liverpool, who served as Prime Minister of the United Kingdom in the early 19th century.

• A. Mary Barstow
  Mary Barstow was the second wife of American illustrator Norman Rockwell and the mother of his three sons.
• B. Mary Darnall
  Mary Darnall was the wife of American Founding Father and Declaration of Independence signer Charles Carroll of Carrollton and a member of a prominent Maryland Catholic family.
• C. Mary Elizabeth Jenkins
  Mary Elizabeth Jenkins, better known as Mary Surratt, was an American boardinghouse owner who became the first woman executed by the U.S. federal government for her role in the conspiracy to assassinate President Abraham Lincoln.
• D. Elizabeth Feake
  Elizabeth Feake was a 17th-century New England colonist known primarily as the wife of military officer and colonial leader John Underhill.
• E. Mary Anne Grindall
  Mary Anne Grindall was the wife of British civil servant, political reformer, and ornithologist Allan Octavian Hume.
• F. None of above. chosen