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: Margaret Ritchie | Statement: [South Down, previousMP, Margaret Ritchie]

Target entity: Margaret Ritchie
Context triple: [South Down, previousMP, Margaret Ritchie]

• A. Margaret Dunlop
  Margaret Dunlop was the wife of British actor Patrick Troughton, best known for his role as the Second Doctor in the long-running television series "Doctor Who."
• B. Margaret Ruthven
  Margaret Ruthven was a Scottish noblewoman of the influential Ruthven family and the mother of James Graham, 1st Marquess of Montrose, a prominent Royalist leader during the Wars of the Three Kingdoms.
• C. Margaret Calvert
  Margaret Calvert is a British graphic designer and typographer best known for co-designing the United Kingdom’s road signage system and many of its most widely used public information symbols.
• D. Margaret Emerson
  Margaret Emerson was a wealthy American heiress and socialite from the Bromo-Seltzer fortune, known for her prominence in early 20th-century high society.
• E. Margaret Watson
  Margaret Watson is a fictional character portrayed by American actress and consumer advocate Betty Furness.
• 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: Margaret Ritchie
Triple: [South Down, previousMP, Margaret Ritchie]

Margaret Ritchie is an Irish nationalist politician from the Social Democratic and Labour Party (SDLP) who served as its leader and as a Member of Parliament representing a Northern Ireland constituency.

Target entity: Margaret Ritchie
Target entity description: Margaret Ritchie is an Irish nationalist politician from the Social Democratic and Labour Party (SDLP) who served as its leader and as a Member of Parliament representing a Northern Ireland constituency.

• A. Margaret Dunlop
  Margaret Dunlop was the wife of British actor Patrick Troughton, best known for his role as the Second Doctor in the long-running television series "Doctor Who."
• B. Margaret Ruthven
  Margaret Ruthven was a Scottish noblewoman of the influential Ruthven family and the mother of James Graham, 1st Marquess of Montrose, a prominent Royalist leader during the Wars of the Three Kingdoms.
• C. Margaret Calvert
  Margaret Calvert is a British graphic designer and typographer best known for co-designing the United Kingdom’s road signage system and many of its most widely used public information symbols.
• D. Margaret Emerson
  Margaret Emerson was a wealthy American heiress and socialite from the Bromo-Seltzer fortune, known for her prominence in early 20th-century high society.
• E. Margaret Watson
  Margaret Watson is a fictional character portrayed by American actress and consumer advocate Betty Furness.
• F. None of above. chosen