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 Stewart, Countess of Angus | Statement: [Archibald Douglas, 5th Earl of Douglas, mother, Margaret Stewart, Countess of Angus]

Target entity: Margaret Stewart, Countess of Angus
Context triple: [Archibald Douglas, 5th Earl of Douglas, mother, Margaret Stewart, Countess of Angus]

• A. Margaret Stewart, Countess of Angus chosen
  Margaret Stewart, Countess of Angus, was a prominent 15th-century Scottish noblewoman of the Stewart family who held the Angus title in her own right and was the mother of James Douglas, 7th Earl of Douglas.
• B. Margaret Stewart, Countess of Douglas
  Margaret Stewart, Countess of Douglas, was a 14th-century Scottish noblewoman and royal daughter whose marriage into the powerful Douglas family strengthened the political alliances of the early Stewart monarchy.
• C. Margaret Stewart of Galloway
  Margaret Stewart of Galloway was a 13th-century Scottish noblewoman of the influential Stewart family and the mother of Marjorie, Countess of Carrick, linking her to the ancestry of Robert the Bruce.
• D. Margaret Stewart, Countess of Mar
  Margaret Stewart, Countess of Mar, was a 14th-century Scottish noblewoman who held the ancient earldom of Mar in her own right and played a notable role in the politics of medieval Scotland.
• E. Margaret Stewart
  Margaret Stewart was a Scottish noblewoman of the late 16th century who became the wife of Charles Howard, 1st Earl of Nottingham, a prominent English admiral under Queen Elizabeth I.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.