Triple

T19835714
Position Surface form Disambiguated ID Type / Status
Subject Suin–Bundang Line E476587 entity
Predicate rollingStock P1305 FINISHED
Object Korail Class 351000 EMU
The Korail Class 351000 EMU is a series of electric multiple unit commuter trains operated by Korail in the Seoul metropolitan area, designed for high-capacity, rapid transit service on suburban railway lines.
 E1396628 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: Korail Class 351000 EMU | Statement: [Suin–Bundang Line, rollingStock, Korail Class 351000 EMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Korail Class 351000 EMU
Context triple: [Suin–Bundang Line, rollingStock, Korail Class 351000 EMU]
  • A. Korail Class 361000 EMU
    The Korail Class 361000 EMU is a series of electric multiple unit commuter trains operated by Korail for metropolitan rail services in the Seoul area.
  • B. Korail Class 331000 EMU
    The Korail Class 331000 EMU is a series of electric multiple unit commuter trains operated by Korail for metropolitan rail services in the Seoul area.
  • C. Korail Class 321000 EMU
    The Korail Class 321000 EMU is a series of electric multiple unit commuter trains operated by Korail for metropolitan rail services in the Seoul area.
  • D. Korail Class 341000 trains
    Korail Class 341000 trains are electric multiple units operated by Korail on Seoul’s metropolitan rail network, designed for high-capacity urban commuter service.
  • E. KTX-Eum
    KTX-Eum is a South Korean high-speed electric multiple unit train operated by Korail, designed for intercity services on the country’s high-speed rail network.
  • 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: Korail Class 351000 EMU
Triple: [Suin–Bundang Line, rollingStock, Korail Class 351000 EMU]
Generated description
The Korail Class 351000 EMU is a series of electric multiple unit commuter trains operated by Korail in the Seoul metropolitan area, designed for high-capacity, rapid transit service on suburban railway lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Korail Class 351000 EMU
Target entity description: The Korail Class 351000 EMU is a series of electric multiple unit commuter trains operated by Korail in the Seoul metropolitan area, designed for high-capacity, rapid transit service on suburban railway lines.
  • A. Korail Class 361000 EMU
    The Korail Class 361000 EMU is a series of electric multiple unit commuter trains operated by Korail for metropolitan rail services in the Seoul area.
  • B. Korail Class 331000 EMU
    The Korail Class 331000 EMU is a series of electric multiple unit commuter trains operated by Korail for metropolitan rail services in the Seoul area.
  • C. Korail Class 321000 EMU
    The Korail Class 321000 EMU is a series of electric multiple unit commuter trains operated by Korail for metropolitan rail services in the Seoul area.
  • D. Korail Class 341000 trains
    Korail Class 341000 trains are electric multiple units operated by Korail on Seoul’s metropolitan rail network, designed for high-capacity urban commuter service.
  • E. KTX-Eum
    KTX-Eum is a South Korean high-speed electric multiple unit train operated by Korail, designed for intercity services on the country’s high-speed rail network.
  • 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_69d8e51c7c188190b926f3a2a7b5f881 completed April 10, 2026, 11:55 a.m.
NER Named-entity recognition batch_69e656d275608190841b23de167c401e completed April 20, 2026, 4:39 p.m.
NED1 Entity disambiguation (via context triple) batch_6a07ccdc05848190a353aa1d51108555 completed May 16, 2026, 1:48 a.m.
NEDg Description generation batch_6a07ce38b6508190aa43a893b01c4d80 completed May 16, 2026, 1:54 a.m.
NED2 Entity disambiguation (via description) batch_6a07ceea12e881908a88a34c40047ecc completed May 16, 2026, 1:56 a.m.
Created at: April 10, 2026, 1:50 p.m.