Triple

T6312739
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metro 8000 series E141542 entity
Predicate safetySystem P840 FINISHED
Object Tokyo Metro CS-ATC E532685 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: Tokyo Metro CS-ATC | Statement: [Tokyo Metro 8000 series, safetySystem, Tokyo Metro CS-ATC]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tokyo Metro CS-ATC
Context triple: [Tokyo Metro 8000 series, safetySystem, Tokyo Metro CS-ATC]
  • A. Tokyo Metro CS-ATC chosen
    Tokyo Metro CS-ATC is a cab signaling-based automatic train control system used on Tokyo Metro and interconnected lines to ensure safe train operation through continuous speed supervision and automatic braking.
  • B. Tokyu ATS
    Tokyu ATS is an automatic train stop safety system used on Tokyu Corporation and compatible railway lines to prevent trains from passing signals at danger and to enhance operational safety.
  • C. Tokyo Metro 7000 series
    The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
  • D. Tokyo Metro 8000 series
    The Tokyo Metro 8000 series is a fleet of electric multiple unit trains introduced in the early 1980s for Tokyo’s subway network, known for their long service life and multiple refurbishment programs.
  • E. Tokyo Metro 1000 series
    The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
  • 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_69c008d00efc8190a36c05b4b4a3bf4b completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c0649ea98c819086509e175812c6c0 completed March 22, 2026, 9:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69c5e469355c81908049e0c68a8c0259 completed March 27, 2026, 1:59 a.m.
Created at: March 22, 2026, 4:28 p.m.