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: Toba-tennō | Statement: [Emperor Toba, personalName, Toba-tennō]

Target entity: Toba-tennō
Context triple: [Emperor Toba, personalName, Toba-tennō]

• A. Ōjin-tennō
  Ōjin-tennō is a semi-legendary early Japanese emperor traditionally regarded as the 15th ruler of Japan and later venerated as the god of war, Hachiman.
• B. Tōshō
  Tōshō is the commonly used Japanese abbreviation for the Tokyo Stock Exchange, one of the world’s largest and most influential stock markets.
• C. Genmei-tennō
  Genmei-tennō was the 43rd monarch of Japan, a Nara-period empress known for establishing Heijō-kyō (Nara) as the imperial capital.
• D. Kameyama-tennō
  Kameyama-tennō was a 13th-century Japanese emperor of the Kamakura period known for his later influence as a cloistered ruler and his involvement in religious and political affairs.
• E. Daigo-tennō
  Daigo-tennō was a Heian-period Japanese emperor remembered for his relatively stable and prosperous reign and for being one of the last rulers to exercise significant direct imperial authority before the rise of powerful regents and warrior clans.
• 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: Toba-tennō
Triple: [Emperor Toba, personalName, Toba-tennō]

Toba-tennō was a 12th-century Japanese emperor of the late Heian period whose cloistered rule significantly influenced court politics and the imperial succession.

Target entity: Toba-tennō
Target entity description: Toba-tennō was a 12th-century Japanese emperor of the late Heian period whose cloistered rule significantly influenced court politics and the imperial succession.

• A. Ōjin-tennō
  Ōjin-tennō is a semi-legendary early Japanese emperor traditionally regarded as the 15th ruler of Japan and later venerated as the god of war, Hachiman.
• B. Tōshō
  Tōshō is the commonly used Japanese abbreviation for the Tokyo Stock Exchange, one of the world’s largest and most influential stock markets.
• C. Genmei-tennō
  Genmei-tennō was the 43rd monarch of Japan, a Nara-period empress known for establishing Heijō-kyō (Nara) as the imperial capital.
• D. Kameyama-tennō
  Kameyama-tennō was a 13th-century Japanese emperor of the Kamakura period known for his later influence as a cloistered ruler and his involvement in religious and political affairs.
• E. Daigo-tennō
  Daigo-tennō was a Heian-period Japanese emperor remembered for his relatively stable and prosperous reign and for being one of the last rulers to exercise significant direct imperial authority before the rise of powerful regents and warrior clans.
• F. None of above. chosen