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: Jōkyū era | Statement: [Jōkyū War, namedAfter, Jōkyū era]

Target entity: Jōkyū era
Context triple: [Jōkyū War, namedAfter, Jōkyū era]

• A. Ryakuō era
  The Ryakuō era was a Japanese historical period name (nengō) used by the Northern Court during the Nanboku-chō period in the 14th century.
• B. Jōei era
  The Jōei era was a Japanese historical period in the early 13th century during the Kamakura shogunate, noted for significant legal and political developments.
• C. Hōei era
  The Hōei era was a Japanese historical period in the early 18th century, notable for major natural disasters including the great Hōei earthquake and the subsequent eruption of Mount Fuji.
• 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. Nanboku-chō period
  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.
• 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: Jōkyū era
Triple: [Jōkyū War, namedAfter, Jōkyū era]

The Jōkyū era was a Japanese imperial era in the early 13th century, notable for political conflict between the imperial court and the Kamakura shogunate.

Target entity: Jōkyū era
Target entity description: The Jōkyū era was a Japanese imperial era in the early 13th century, notable for political conflict between the imperial court and the Kamakura shogunate.

• A. Ryakuō era
  The Ryakuō era was a Japanese historical period name (nengō) used by the Northern Court during the Nanboku-chō period in the 14th century.
• B. Jōei era
  The Jōei era was a Japanese historical period in the early 13th century during the Kamakura shogunate, noted for significant legal and political developments.
• C. Hōei era
  The Hōei era was a Japanese historical period in the early 18th century, notable for major natural disasters including the great Hōei earthquake and the subsequent eruption of Mount Fuji.
• 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. Nanboku-chō period
  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.
• F. None of above. chosen