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: Genpei War era | Statement: [Emperor Antoku, historicalPeriod, Genpei War era]

Target entity: Genpei War era
Context triple: [Emperor Antoku, historicalPeriod, Genpei War era]

• A. Enryaku era
  The Enryaku era was a Japanese imperial era (782–806 CE) during the early Heian period, notable for political reforms and the rise of influential Buddhist institutions.
• B. Genpei War chosen
  The Genpei War was a late 12th-century Japanese civil war between the Taira and Minamoto clans that led to the rise of the samurai class and the establishment of the Kamakura shogunate.
• C. Sengoku period
  The Sengoku period was a turbulent era of civil war and social upheaval in Japan, marked by powerful feudal lords vying for control and laying the groundwork for the country’s eventual unification.
• D. Nanboku-chō period conflicts
  The Nanboku-chō period conflicts were a series of 14th-century Japanese civil wars between rival Northern and Southern imperial courts that shaped the rise of the Ashikaga shogunate and redefined imperial authority.
• E. Yamato period
  The Yamato period was an early era of Japanese history (roughly 3rd to 7th century) marked by the political consolidation of the Yamato clan, the emergence of a centralized state, and the introduction of Buddhism and Chinese cultural influences.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.