Triple

T12120165
Position Surface form Disambiguated ID Type / Status
Subject Amagasaki derailment E288671 entity
Predicate investigatedBy P6157 FINISHED
Object Japan Transport Safety Board E558578 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: Japan Transport Safety Board | Statement: [Amagasaki derailment, investigatedBy, Japan Transport Safety Board]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Japan Transport Safety Board
Context triple: [Amagasaki derailment, investigatedBy, Japan Transport Safety Board]
  • A. Japan Transport Safety Board chosen
    The Japan Transport Safety Board is a Japanese government body responsible for investigating accidents and incidents across aviation, rail, marine, and other transport modes to improve safety.
  • B. Road Transport Bureau of Japan
    The Road Transport Bureau of Japan is a governmental body responsible for planning, regulating, and overseeing the nation’s road transport systems and vehicle administration under the Ministry of Land, Infrastructure, Transport and Tourism.
  • C. Railway Bureau of Japan
    The Railway Bureau of Japan is a governmental body responsible for planning, regulating, and overseeing the nation’s railway systems and policies.
  • D. Japan transport authorities
    Japan transport authorities are the national government bodies responsible for regulating, overseeing, and enforcing standards for the country’s transportation systems, including rail operators like JR Shikoku.
  • E. Japanese National Railways
    Japanese National Railways was Japan’s former state-owned railway company that operated the country’s nationwide rail network until its privatization and breakup in 1987.
  • 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_69d6ab4b5e4c81909950b17151eb0951 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d91577a03c81909add7a5d7324a648 completed April 10, 2026, 3:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69f5f684172c81908b77daa243dc8ed8 completed May 2, 2026, 1:05 p.m.
Created at: April 8, 2026, 9:49 p.m.