Triple

T14614878
Position Surface form Disambiguated ID Type / Status
Subject Kokyo Gaien National Garden E343058 entity
Predicate hasJapaneseName P9882 FINISHED
Object 皇居外苑
皇居外苑 is a public park area surrounding the outer grounds of the Imperial Palace in central Tokyo, known for its wide open plazas, historic sites, and views of the palace and surrounding cityscape.
 E1110034 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

Instruction
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).
Input
Phrase: 皇居外苑 | Statement: [Kokyo Gaien National Garden, hasJapaneseName, 皇居外苑]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 皇居外苑
Context triple: [Kokyo Gaien National Garden, hasJapaneseName, 皇居外苑]
  • A. 皇居
    皇居は、日本の天皇と皇室の公的な居所および宮中行事の中心となる東京都千代田区に位置する宮殿・庭園の総称である。
  • B. 皇室
    皇室 refers to the Imperial House of Japan, the hereditary monarchy that constitutes the world’s oldest continuing royal dynasty.
  • C. 北京皇城
    北京皇城是明清两代北京城中围绕皇宫设置的内城区域，汇集重要宫殿、坛庙和皇家建筑群的核心防御与礼制空间。
  • D. East Palace Garden
    East Palace Garden is a reconstructed classical Japanese garden within the ancient Heijō Palace site in Nara, illustrating the landscape design and court culture of the Nara period.
  • E. 西楼門
    西楼門 is a prominent western tower gate of Yasaka Shrine in Kyoto, known for its traditional Shinto architectural style and role as a main entrance to the shrine precincts.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: 皇居外苑
Target entity description: 皇居外苑 is a public park area surrounding the outer grounds of the Imperial Palace in central Tokyo, known for its wide open plazas, historic sites, and views of the palace and surrounding cityscape.
  • A. 皇居
    皇居は、日本の天皇と皇室の公的な居所および宮中行事の中心となる東京都千代田区に位置する宮殿・庭園の総称である。
  • B. 皇室
    皇室 refers to the Imperial House of Japan, the hereditary monarchy that constitutes the world’s oldest continuing royal dynasty.
  • C. 北京皇城
    北京皇城是明清两代北京城中围绕皇宫设置的内城区域，汇集重要宫殿、坛庙和皇家建筑群的核心防御与礼制空间。
  • D. East Palace Garden
    East Palace Garden is a reconstructed classical Japanese garden within the ancient Heijō Palace site in Nara, illustrating the landscape design and court culture of the Nara period.
  • E. 西楼門
    西楼門 is a prominent western tower gate of Yasaka Shrine in Kyoto, known for its traditional Shinto architectural style and role as a main entrance to the shrine precincts.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

Instruction
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]"
Input
Entity: 皇居外苑
Triple: [Kokyo Gaien National Garden, hasJapaneseName, 皇居外苑]
Generated description
皇居外苑 is a public park area surrounding the outer grounds of the Imperial Palace in central Tokyo, known for its wide open plazas, historic sites, and views of the palace and surrounding cityscape.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d822dec68081908c2553145c4051dc elicitation completed
NER batch_69deb45264988190a1df13e8b54a85bd ner completed
NED1 batch_69fda922f29c8190af98a8241d86f7cd ned_source_triple completed
NED2 batch_69fdb34d945c8190a464c0d4e5612ceb ned_description completed
NEDg batch_69fdb26b3ec481909c37e56eca8c7a82 nedg completed
Created at: April 10, 2026, 1:25 a.m.