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: Ferdinand I of Bulgaria | Statement: [Bulgarian royal family, firstMonarchFromHouseOfSaxeCoburgAndGotha, Ferdinand I of Bulgaria]

Target entity: Ferdinand I of Bulgaria
Context triple: [Bulgarian royal family, firstMonarchFromHouseOfSaxeCoburgAndGotha, Ferdinand I of Bulgaria]

• A. Ferdinand I of Bulgaria chosen
  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.
• B. Boris III of Bulgaria
  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.
• C. 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.
• D. Alexander I of Bulgaria
  Alexander I of Bulgaria was the first modern ruler of an autonomous Bulgaria after Ottoman rule, reigning as prince from 1879 to 1886 during the formative years of the Bulgarian state.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: firstMonarchFromHouseOfSaxeCoburgAndGotha
Context triple: [Bulgarian royal family, firstMonarchFromHouseOfSaxeCoburgAndGotha, Ferdinand I of Bulgaria]

• A. founderOfHouseOfWindsor
  Indicates that a person is the one who established or originated the House of Windsor as a royal dynasty.
• B. firstMonarch chosen
  Indicates that the subject is the first monarch (initial ruler) of the object polity or domain.
• C. governingMonarch
  Indicates that one entity serves as the reigning monarch who holds sovereign authority over the other entity.
• D. monarchConsortOf
  Indicates that one person is the spouse of a reigning monarch, holding the role of consort to that monarch.
• E. representedMonarch
  Indicates that one entity formally acted on behalf of, or served as the official representative of, a monarch in some capacity or context.
• F. None of above.