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: Emperor Sutoku | Statement: [Emperor Toba, successor, Emperor Sutoku]

Target entity: Emperor Sutoku
Context triple: [Emperor Toba, successor, Emperor Sutoku]

• A. Emperor Shirakawa
  Emperor Shirakawa was a Japanese sovereign of the late 11th and early 12th centuries who is renowned for pioneering the system of cloistered rule that shaped Heian-period politics.
• B. Emperor Juntoku
  Emperor Juntoku was a 13th-century Japanese emperor known for his role in the Jōkyū War and subsequent exile, which marked a turning point in the balance of power between the imperial court and the Kamakura shogunate.
• C. Emperor Go-Shirakawa
  Emperor Go-Shirakawa was a 12th-century Japanese emperor whose turbulent reign and subsequent cloistered rule marked a pivotal period of political conflict and transition in the late Heian era.
• D. Emperor Seiwa
  Emperor Seiwa was a 9th-century Japanese emperor whose descendants founded the influential Seiwa Genji branch of the Minamoto clan, from which many prominent samurai, including the first shoguns, claimed lineage.
• E. Emperor Nijō
  Emperor Nijō was a 12th-century Japanese emperor of the late Heian period whose short reign was marked by intense court factionalism and armed conflict.
• 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: Emperor Sutoku
Triple: [Emperor Toba, successor, Emperor Sutoku]

Emperor Sutoku was a 12th-century Japanese emperor whose post-abdication involvement in the Hōgen Rebellion and subsequent exile led to his later portrayal as a vengeful spirit in Japanese legend.

Target entity: Emperor Sutoku
Target entity description: Emperor Sutoku was a 12th-century Japanese emperor whose post-abdication involvement in the Hōgen Rebellion and subsequent exile led to his later portrayal as a vengeful spirit in Japanese legend.

• A. Emperor Shirakawa
  Emperor Shirakawa was a Japanese sovereign of the late 11th and early 12th centuries who is renowned for pioneering the system of cloistered rule that shaped Heian-period politics.
• B. Emperor Juntoku
  Emperor Juntoku was a 13th-century Japanese emperor known for his role in the Jōkyū War and subsequent exile, which marked a turning point in the balance of power between the imperial court and the Kamakura shogunate.
• C. Emperor Go-Shirakawa
  Emperor Go-Shirakawa was a 12th-century Japanese emperor whose turbulent reign and subsequent cloistered rule marked a pivotal period of political conflict and transition in the late Heian era.
• D. Emperor Seiwa
  Emperor Seiwa was a 9th-century Japanese emperor whose descendants founded the influential Seiwa Genji branch of the Minamoto clan, from which many prominent samurai, including the first shoguns, claimed lineage.
• E. Emperor Nijō
  Emperor Nijō was a 12th-century Japanese emperor of the late Heian period whose short reign was marked by intense court factionalism and armed conflict.
• F. None of above. chosen