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: Charles IV of Spain | Statement: [Federico Gravina, servedUnder, Charles IV of Spain]

Target entity: Charles IV of Spain
Context triple: [Federico Gravina, servedUnder, Charles IV of Spain]

• A. Charles IV of Spain chosen
  Charles IV of Spain was a late 18th- and early 19th-century Bourbon king whose weak rule and reliance on favorites contributed to political instability and the circumstances leading to the Peninsular War and the decline of Spanish power.
• B. Charles I of Spain
  Charles I of Spain, also known as Charles V, was a 16th-century Habsburg monarch who ruled an expansive global empire as King of Spain and Holy Roman Emperor.
• C. Charles III of Spain
  Charles III of Spain was an 18th-century Bourbon monarch known for his enlightened absolutist reforms that modernized Spain’s administration, economy, and empire.
• D. Ferdinand VI of Spain
  Ferdinand VI of Spain was an 18th-century Bourbon monarch known for his peaceful foreign policy, efforts to stabilize Spain’s finances, and promotion of cultural and administrative reforms.
• E. Philip IV of Spain
  Philip IV of Spain was a 17th-century Habsburg king who presided over the Spanish Empire during its political and military decline but also its cultural Golden Age, patronizing artists like Diego Velázquez.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.