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: Alfonso of Castile | Statement: [Alfonso, Prince of Asturias, birthName, Alfonso of Castile]

Target entity: Alfonso of Castile
Context triple: [Alfonso, Prince of Asturias, birthName, Alfonso of Castile]

• A. Alfonso, King of Castile
  "Alfonso, King of Castile" is a historical tragedy by Matthew Gregory Lewis that dramatizes the turbulent reign and personal conflicts of a medieval Castilian monarch.
• B. Henry II of Castile
  Henry II of Castile was a 14th-century king who seized the Castilian throne after a civil war against his half-brother Peter I and became the first monarch of the Trastámara dynasty.
• C. Henry I of Castile
  Henry I of Castile was a 13th-century king of Castile and León whose brief reign began in childhood and ended abruptly with his early death, leading to the accession of his sister Berengaria and then Ferdinand III.
• D. Henry III of Castile
  Henry III of Castile was a late 14th- and early 15th-century king of Castile and León known for consolidating royal authority, curbing noble power, and strengthening the monarchy’s finances and foreign alliances.
• E. John I of Castile
  John I of Castile was a 14th-century king of Castile and León whose reign was marked by dynastic conflicts, attempts to claim the Portuguese crown, and efforts to strengthen royal authority on the Iberian Peninsula.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Alfonso of Castile
Triple: [Alfonso, Prince of Asturias, birthName, Alfonso of Castile]

Alfonso of Castile was a medieval Castilian royal prince who held the title Prince of Asturias as heir to the throne of Castile.

Target entity: Alfonso of Castile
Target entity description: Alfonso of Castile was a medieval Castilian royal prince who held the title Prince of Asturias as heir to the throne of Castile.

• A. Alfonso, King of Castile
  "Alfonso, King of Castile" is a historical tragedy by Matthew Gregory Lewis that dramatizes the turbulent reign and personal conflicts of a medieval Castilian monarch.
• B. Henry II of Castile
  Henry II of Castile was a 14th-century king who seized the Castilian throne after a civil war against his half-brother Peter I and became the first monarch of the Trastámara dynasty.
• C. Henry I of Castile
  Henry I of Castile was a 13th-century king of Castile and León whose brief reign began in childhood and ended abruptly with his early death, leading to the accession of his sister Berengaria and then Ferdinand III.
• D. Henry III of Castile
  Henry III of Castile was a late 14th- and early 15th-century king of Castile and León known for consolidating royal authority, curbing noble power, and strengthening the monarchy’s finances and foreign alliances.
• E. John I of Castile
  John I of Castile was a 14th-century king of Castile and León whose reign was marked by dynastic conflicts, attempts to claim the Portuguese crown, and efforts to strengthen royal authority on the Iberian Peninsula.
• F. None of above. chosen