Triple

T5716317
Position Surface form Disambiguated ID Type / Status
Subject E233 series EMU E126032 entity
Predicate manufacturer P490 FINISHED
Object JR East Niitsu Rolling Stock Plant E538222 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: JR East Niitsu Rolling Stock Plant | Statement: [E233 series EMU, manufacturer, JR East Niitsu Rolling Stock Plant]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: JR East Niitsu Rolling Stock Plant
Context triple: [E233 series EMU, manufacturer, JR East Niitsu Rolling Stock Plant]
  • A. JR East Niitsu Rolling Stock Plant chosen
    JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
  • B. Kinki Sharyo
    Kinki Sharyo is a Japanese manufacturer specializing in the design and production of railway vehicles, including metro and light rail trains used in systems worldwide.
  • C. Odakyu Electric Railway
    Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
  • D. JR Freight
    JR Freight is Japan’s primary rail freight operator, formed from the breakup and privatization of the former Japanese National Railways.
  • E. JR East Nambu Line
    The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
  • 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_69c0082e3d548190950169847b43043b completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c024b89b0881908675434fefe54ee8 completed March 22, 2026, 5:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69c05a7af5788190827ff8050eb6416d completed March 22, 2026, 9:09 p.m.
Created at: March 22, 2026, 3:46 p.m.