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: Raising of Minamoto banner in 1180 | Statement: [Battle of Ishibashiyama, precededBy, Raising of Minamoto banner in 1180]

Target entity: Raising of Minamoto banner in 1180
Context triple: [Battle of Ishibashiyama, precededBy, Raising of Minamoto banner in 1180]

• A. Hōgen Rebellion
  The Hōgen Rebellion was a brief but pivotal 1156 civil war in Japan that marked the beginning of samurai dominance and the decline of imperial court authority.
• B. Heiji Rebellion
  The Heiji Rebellion was a short but pivotal 12th-century civil war in Japan that intensified the power struggle between the Taira and Minamoto clans and helped set the stage for the rise of the samurai-led shogunate.
• C. Ōnin War
  The Ōnin War was a devastating 15th-century civil conflict in Japan that triggered the collapse of central shogunal authority and ushered in the chaotic Sengoku (Warring States) period.
• D. Siege of Kyoto (1221)
  The Siege of Kyoto (1221) was a pivotal military clash in which forces loyal to retired Emperor Go-Toba unsuccessfully attempted to seize the imperial capital from the Kamakura shogunate during the Jōkyū War.
• E. Shinpūren Rebellion
  The Shinpūren Rebellion was an 1876 uprising in Kumamoto, Japan, led by radical samurai opposed to Westernization and the Meiji government's reforms.
• 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: Raising of Minamoto banner in 1180
Triple: [Battle of Ishibashiyama, precededBy, Raising of Minamoto banner in 1180]

The Raising of the Minamoto banner in 1180 was the symbolic act by Minamoto no Yoritomo of declaring open rebellion against the Taira clan, marking the beginning of the Genpei War in Japan.

Target entity: Raising of Minamoto banner in 1180
Target entity description: The Raising of the Minamoto banner in 1180 was the symbolic act by Minamoto no Yoritomo of declaring open rebellion against the Taira clan, marking the beginning of the Genpei War in Japan.

• A. Hōgen Rebellion
  The Hōgen Rebellion was a brief but pivotal 1156 civil war in Japan that marked the beginning of samurai dominance and the decline of imperial court authority.
• B. Heiji Rebellion
  The Heiji Rebellion was a short but pivotal 12th-century civil war in Japan that intensified the power struggle between the Taira and Minamoto clans and helped set the stage for the rise of the samurai-led shogunate.
• C. Ōnin War
  The Ōnin War was a devastating 15th-century civil conflict in Japan that triggered the collapse of central shogunal authority and ushered in the chaotic Sengoku (Warring States) period.
• D. Siege of Kyoto (1221)
  The Siege of Kyoto (1221) was a pivotal military clash in which forces loyal to retired Emperor Go-Toba unsuccessfully attempted to seize the imperial capital from the Kamakura shogunate during the Jōkyū War.
• E. Shinpūren Rebellion
  The Shinpūren Rebellion was an 1876 uprising in Kumamoto, Japan, led by radical samurai opposed to Westernization and the Meiji government's reforms.
• F. None of above. chosen