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: Alexander Comyn, Earl of Buchan | Statement: [Walter Comyn, Earl of Menteith, sibling, Alexander Comyn, Earl of Buchan]

Target entity: Alexander Comyn, Earl of Buchan
Context triple: [Walter Comyn, Earl of Menteith, sibling, Alexander Comyn, Earl of Buchan]

• A. Alexander Comyn, Earl of Buchan chosen
  Alexander Comyn, Earl of Buchan, was a prominent 13th-century Scottish nobleman and political leader who served as one of the Guardians of Scotland during the interregnum following the death of Alexander III.
• B. William Comyn, Earl of Buchan
  William Comyn, Earl of Buchan, was a powerful 13th-century Scottish noble and Justiciar whose marriage into the Buchan earldom greatly expanded the influence of the Comyn family in medieval Scotland.
• C. Walter Comyn, Earl of Menteith
  Walter Comyn, Earl of Menteith, was a powerful 13th-century Scottish noble and political figure who played a major role in the kingdom’s affairs during the reign of Alexander II.
• D. Alexander Stewart, Earl of Buchan
  Alexander Stewart, Earl of Buchan—known as the "Wolf of Badenoch"—was a notoriously lawless 14th-century Scottish nobleman and son of King Robert II, infamous for his brutal raids and destruction in the Highlands.
• E. Walter Stewart, Earl of Fife
  Walter Stewart, Earl of Fife, was a 14th-century Scottish nobleman and son of King Robert II of Scotland and Elizabeth Mure, who played a role in the complex dynastic politics of the early Stewart monarchy.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.