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: Boris III of Bulgaria | Statement: [Princess Marie Louise of Bourbon-Parma, father, Boris III of Bulgaria]

Target entity: Boris III of Bulgaria
Context triple: [Princess Marie Louise of Bourbon-Parma, father, Boris III of Bulgaria]

• A. Boris III of Bulgaria chosen
  Boris III of Bulgaria was the Tsar of Bulgaria from 1918 to 1943, known for steering his country through the interwar period and most of World War II while attempting to maintain a degree of independence from Nazi Germany.
• B. Ferdinand I of Bulgaria
  Ferdinand I of Bulgaria was the ruler who transformed Bulgaria from a principality into an independent kingdom, serving as its prince and later tsar from 1887 to 1918 and leading the country through the Balkan Wars and World War I.
• C. Simeon II of Bulgaria
  Simeon II of Bulgaria is the former Tsar of Bulgaria who later returned to the country as a democratic politician and served as its prime minister.
• D. Peter I of Bulgaria
  Peter I of Bulgaria was a 10th-century tsar of the First Bulgarian Empire known for his long and relatively peaceful reign, during which Bulgaria strengthened its Christianity and diplomatic ties with Byzantium.
• E. Peter IV of Bulgaria
  Peter IV of Bulgaria was a medieval Bulgarian tsar who played a key role in the restoration of Bulgarian independence and the establishment of the Second Bulgarian Empire in the late 12th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.