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: Sengoku (Warring States) period | Statement: [Ōnin War, triggered, Sengoku (Warring States) period]

Target entity: Sengoku (Warring States) period
Context triple: [Ōnin War, triggered, Sengoku (Warring States) period]

• A. Sengoku period chosen
  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.
• B. Muromachi period
  The Muromachi period was a Japanese historical era (1336–1573) marked by Ashikaga shogunate rule, flourishing arts such as Noh and ink painting, and the growth of prosperous merchant cities like Sakai.
• C. 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.
• D. Edo period
  The Edo period was a long era of relative peace, isolationist foreign policy, and flourishing urban culture in Japan under Tokugawa shogunate rule from the early 17th to the mid-19th century.
• E. Azuchi–Momoyama period
  The Azuchi–Momoyama period was a brief late-16th-century era in Japanese history marked by the unification efforts of Oda Nobunaga and Toyotomi Hideyoshi, vibrant castle culture, and the transition toward the Tokugawa shogunate.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.