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 Mortimer, Baroness Berkeley | Statement: [Beatrice Mortimer, sibling, Margaret Mortimer, Baroness Berkeley]

Target entity: Margaret Mortimer, Baroness Berkeley
Context triple: [Beatrice Mortimer, sibling, Margaret Mortimer, Baroness Berkeley]

• A. Margaret Mortimer, Baroness Berkeley chosen
  Margaret Mortimer, Baroness Berkeley was a 14th-century English noblewoman of the powerful Mortimer family who became Baroness Berkeley through marriage into the influential Berkeley dynasty.
• B. Lady Margaret Butler
  Lady Margaret Butler was an Irish noblewoman of the Butler family who, through her son Thomas Boleyn, became the grandmother of Anne Boleyn and great-grandmother of Queen Elizabeth I of England.
• C. Margaret Stanley
  Margaret Stanley was an English noblewoman of the late 15th and early 16th centuries, notable as a member of the influential Stanley family during the Tudor period.
• D. Lady Margaret Sackville
  Lady Margaret Sackville was an English noblewoman of the early 18th century, notable as the daughter of Elizabeth Colyear and a member of the influential Sackville family.
• E. Isabel de Berkeley
  Isabel de Berkeley was a medieval English noblewoman of the Mortimer family, known primarily through her lineage as the daughter of Margaret Mortimer and her connections to the aristocracy of the period.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.