Triple

T2787543
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metropolitan Police Department E61847 entity
Predicate headquartersLocation P62 FINISHED
Object Kasumigaseki, Chiyoda, Tokyo E132545 NE FINISHED

How this triple was built (2 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, Chiyoda, Tokyo | Statement: [Tokyo Metropolitan Police Department, headquartersLocation, Kasumigaseki, Chiyoda, Tokyo]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kasumigaseki, Chiyoda, Tokyo
Context triple: [Tokyo Metropolitan Police Department, headquartersLocation, Kasumigaseki, Chiyoda, Tokyo]
  • A. Kasumigaseki, Chiyoda, Tokyo chosen
    Kasumigaseki in Chiyoda, Tokyo is a central government district known for housing numerous Japanese ministries and key national administrative agencies.
  • B. Hayabusachō, Chiyoda, Tokyo
    Hayabusachō, Chiyoda, Tokyo is a central Tokyo district known for housing key national institutions, including Japan’s Supreme Court.
  • C. Chiyoda, Tokyo, Japan
    Chiyoda is a central special ward of Tokyo that serves as Japan’s political and administrative heart, housing the Imperial Palace, the National Diet, and many government institutions.
  • D. Itabashi, Tokyo
    Itabashi, Tokyo is one of Tokyo's 23 special wards, located in the northwestern part of the metropolis and known as a primarily residential and commercial area.
  • E. Toshima, Tokyo
    Toshima, Tokyo is a special ward in northwestern Tokyo known for its major commercial and entertainment hub Ikebukuro and its mix of residential, educational, and cultural institutions.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69ab4b7f51d881908768300ebd2fbdae completed March 6, 2026, 9:47 p.m.
NER Named-entity recognition batch_69abddb264c88190af1699785ecf3161 completed March 7, 2026, 8:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69afc6555ee08190b1ddd5446818f74e completed March 10, 2026, 7:20 a.m.
Created at: March 6, 2026, 9:57 p.m.