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: King of Brittany | Statement: [Duke of Brittany, follows, King of Brittany]

Target entity: King of Brittany
Context triple: [Duke of Brittany, follows, King of Brittany]

• A. Duke of Brittany
  The Duke of Brittany was the sovereign or semi-sovereign ruler of the historic region of Brittany in northwestern France, holding a ducal title central to the area's medieval political and cultural identity.
• B. Geoffrey II, Duke of Brittany
  Geoffrey II, Duke of Brittany was a 12th-century French nobleman, son of Henry II of England and brother of Richard the Lionheart, who ruled Brittany through his marriage to Constance and died young in a tournament accident.
• C. Prince Arthur, Duke of Brittany
  Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
• D. Duke of Aquitaine
  The Duke of Aquitaine was a powerful medieval noble title associated with rulership over the rich and strategically important region of Aquitaine in southwestern France, often held by English kings during the High Middle Ages.
• E. David of Sassoun
  David of Sassoun is a legendary Armenian folk hero and epic warrior celebrated for his superhuman strength and defense of his homeland in the medieval national epic.
• 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: King of Brittany
Triple: [Duke of Brittany, follows, King of Brittany]

The King of Brittany was the medieval sovereign ruler of the historical region of Brittany in western France, preceding the later ducal authority.

Target entity: King of Brittany
Target entity description: The King of Brittany was the medieval sovereign ruler of the historical region of Brittany in western France, preceding the later ducal authority.

• A. Duke of Brittany
  The Duke of Brittany was the sovereign or semi-sovereign ruler of the historic region of Brittany in northwestern France, holding a ducal title central to the area's medieval political and cultural identity.
• B. Geoffrey II, Duke of Brittany
  Geoffrey II, Duke of Brittany was a 12th-century French nobleman, son of Henry II of England and brother of Richard the Lionheart, who ruled Brittany through his marriage to Constance and died young in a tournament accident.
• C. Prince Arthur, Duke of Brittany
  Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
• D. Duke of Aquitaine
  The Duke of Aquitaine was a powerful medieval noble title associated with rulership over the rich and strategically important region of Aquitaine in southwestern France, often held by English kings during the High Middle Ages.
• E. David of Sassoun
  David of Sassoun is a legendary Armenian folk hero and epic warrior celebrated for his superhuman strength and defense of his homeland in the medieval national epic.
• F. None of above. chosen