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: Nanboku-chō period | Statement: [Emperor Go-Daigo, era, Nanboku-chō period]

Target entity: Nanboku-chō period
Context triple: [Emperor Go-Daigo, era, Nanboku-chō period]

• A. Nanboku-chō period chosen
  The Nanboku-chō period was a turbulent era in Japanese history (1336–1392) marked by the rivalry between the Northern and Southern imperial courts and prolonged civil war over legitimate imperial succession.
• 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. Kamakura period
  The Kamakura period was a pivotal era in Japanese history (1185–1333) marked by the rise of the samurai class and the establishment of the first shogunate government in Kamakura.
• D. Kenmu Restoration
  The Kenmu Restoration was a brief 14th-century attempt by Emperor Go-Daigo to restore direct imperial rule in Japan, which ultimately collapsed and led to the establishment of the Ashikaga shogunate.
• E. Heian period
  The Heian period was a classical era of Japanese history (794–1185) marked by an imperial court-centered culture, flourishing literature such as The Tale of Genji, and the development of a distinct Japanese aesthetic.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.