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: Robert Curthose | Statement: [William the Conqueror, child, Robert Curthose]

Target entity: Robert Curthose
Context triple: [William the Conqueror, child, Robert Curthose]

• A. Robert I, Duke of Normandy
  Robert I, Duke of Normandy was an early 11th-century Norman ruler best known as the father of William the Conqueror and for his pious pilgrimage to the Holy Land, during which he died.
• B. Duke of Normandy
  The Duke of Normandy is the feudal title held by the British monarch in respect of the Channel Islands, reflecting their historic status separate from the United Kingdom.
• C. William Adelin
  William Adelin was the only legitimate son and heir of King Henry I of England whose death in the White Ship disaster of 1120 triggered a succession crisis and civil war.
• D. Hugh of Vermandois
  Hugh of Vermandois was a French nobleman and younger brother of King Philip I of France who served as one of the prominent princely leaders during the First Crusade.
• E. Henry I of England
  Henry I of England was a 12th-century Norman king known for consolidating royal authority, reforming administration and justice, and strengthening the English monarchy after the Norman Conquest.
• 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: Robert Curthose
Triple: [William the Conqueror, child, Robert Curthose]

Robert Curthose was the eldest son of William the Conqueror, who became Duke of Normandy and played a key role in the politics and warfare of late 11th- and early 12th-century Western Europe.

Target entity: Robert Curthose
Target entity description: Robert Curthose was the eldest son of William the Conqueror, who became Duke of Normandy and played a key role in the politics and warfare of late 11th- and early 12th-century Western Europe.

• A. Robert I, Duke of Normandy
  Robert I, Duke of Normandy was an early 11th-century Norman ruler best known as the father of William the Conqueror and for his pious pilgrimage to the Holy Land, during which he died.
• B. Duke of Normandy
  The Duke of Normandy is the feudal title held by the British monarch in respect of the Channel Islands, reflecting their historic status separate from the United Kingdom.
• C. William Adelin
  William Adelin was the only legitimate son and heir of King Henry I of England whose death in the White Ship disaster of 1120 triggered a succession crisis and civil war.
• D. Hugh of Vermandois
  Hugh of Vermandois was a French nobleman and younger brother of King Philip I of France who served as one of the prominent princely leaders during the First Crusade.
• E. Henry I of England
  Henry I of England was a 12th-century Norman king known for consolidating royal authority, reforming administration and justice, and strengthening the English monarchy after the Norman Conquest.
• F. None of above. chosen