Triple

T5957174
Position Surface form Disambiguated ID Type / Status
Subject Kasumigaseki, Chiyoda, Tokyo E132545 entity
Predicate hasLandmarkBuilding P14728 FINISHED
Object Kasumigaseki Building
Kasumigaseki Building is one of Tokyo’s earliest and most iconic high-rise office skyscrapers, symbolizing Japan’s postwar modernization.
 E558579 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: Kasumigaseki Building | Statement: [Kasumigaseki, Chiyoda, Tokyo, hasLandmarkBuilding, Kasumigaseki Building]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kasumigaseki Building
Context triple: [Kasumigaseki, Chiyoda, Tokyo, hasLandmarkBuilding, Kasumigaseki Building]
  • A. Imperial Household Agency Building
    The Imperial Household Agency Building is the government office complex in Tokyo that serves as the administrative headquarters for Japan’s Imperial Household Agency, which manages affairs related to the Imperial Family and the Imperial Palace.
  • B. Akasaka Palace
    Akasaka Palace is a former imperial residence in Tokyo that now serves as Japan’s state guest house for hosting visiting dignitaries and official events.
  • C. Hachiōji City Hall
    Hachiōji City Hall is the main municipal government building and administrative center serving the city of Hachiōji in Tokyo, Japan.
  • D. Nagoya City Hall
    Nagoya City Hall is the central municipal government building and administrative headquarters of the city of Nagoya, Japan.
  • E. Tokyo Metropolitan Government Building
    The Tokyo Metropolitan Government Building is a landmark twin-tower skyscraper in Shinjuku, Tokyo, known for housing the city’s government offices and offering public observation decks with panoramic views.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
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: Kasumigaseki Building
Triple: [Kasumigaseki, Chiyoda, Tokyo, hasLandmarkBuilding, Kasumigaseki Building]
Generated description
Kasumigaseki Building is one of Tokyo’s earliest and most iconic high-rise office skyscrapers, symbolizing Japan’s postwar modernization.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Kasumigaseki Building
Target entity description: Kasumigaseki Building is one of Tokyo’s earliest and most iconic high-rise office skyscrapers, symbolizing Japan’s postwar modernization.
  • A. Imperial Household Agency Building
    The Imperial Household Agency Building is the government office complex in Tokyo that serves as the administrative headquarters for Japan’s Imperial Household Agency, which manages affairs related to the Imperial Family and the Imperial Palace.
  • B. Akasaka Palace
    Akasaka Palace is a former imperial residence in Tokyo that now serves as Japan’s state guest house for hosting visiting dignitaries and official events.
  • C. Hachiōji City Hall
    Hachiōji City Hall is the main municipal government building and administrative center serving the city of Hachiōji in Tokyo, Japan.
  • D. Nagoya City Hall
    Nagoya City Hall is the central municipal government building and administrative headquarters of the city of Nagoya, Japan.
  • E. Tokyo Metropolitan Government Building
    The Tokyo Metropolitan Government Building is a landmark twin-tower skyscraper in Shinjuku, Tokyo, known for housing the city’s government offices and offering public observation decks with panoramic views.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69c0086b05cc8190a8f36a96927a525c completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c039c34ca881909a219eddf99348ab completed March 22, 2026, 6:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0e3dd99888190ac3eeef692a7d879 completed March 23, 2026, 6:55 a.m.
NEDg Description generation batch_69c0ed9c53d4819082c661cdd2d26612 completed March 23, 2026, 7:37 a.m.
NED2 Entity disambiguation (via description) batch_69c0ee2ffbc88190a256b5cb8a98f382 completed March 23, 2026, 7:39 a.m.
Created at: March 22, 2026, 4:02 p.m.