Triple

T1710857
Position Surface form Disambiguated ID Type / Status
Subject Busan Metro E36979 entity
Predicate operator P179 FINISHED
Object Busan Transportation Corporation
Busan Transportation Corporation is the public transit authority responsible for operating and managing urban rail and related transportation services in Busan, South Korea.
 E36979 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: Busan Transportation Corporation | Statement: [Busan Metro, operator, Busan Transportation Corporation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Busan Transportation Corporation
Context triple: [Busan Metro, operator, Busan Transportation Corporation]
  • A. Busan Infrastructure Corporation
    Busan Infrastructure Corporation is a public organization in Busan, South Korea, responsible for developing, operating, and maintaining the city’s major urban and transportation infrastructure.
  • B. Busan Metro
    Busan Metro is the rapid transit system serving the city of Busan, South Korea, providing extensive urban and suburban rail transportation across the metropolitan area.
  • C. Hanwa Line
    The Hanwa Line is a major railway line in Japan’s Kansai region operated by JR West, connecting central Osaka with southern Osaka Prefecture and Wakayama.
  • D. Korail
    Korail is South Korea's national railroad operator, managing the country's major passenger and freight rail services.
  • E. Daejeon Metro
    Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
  • 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: Busan Transportation Corporation
Triple: [Busan Metro, operator, Busan Transportation Corporation]
Generated description
Busan Transportation Corporation is the public transit authority responsible for operating and managing urban rail and related transportation services in Busan, South Korea.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Busan Transportation Corporation
Target entity description: Busan Transportation Corporation is the public transit authority responsible for operating and managing urban rail and related transportation services in Busan, South Korea.
  • A. Busan Infrastructure Corporation
    Busan Infrastructure Corporation is a public organization in Busan, South Korea, responsible for developing, operating, and maintaining the city’s major urban and transportation infrastructure.
  • B. Busan Metro chosen
    Busan Metro is the rapid transit system serving the city of Busan, South Korea, providing extensive urban and suburban rail transportation across the metropolitan area.
  • C. Hanwa Line
    The Hanwa Line is a major railway line in Japan’s Kansai region operated by JR West, connecting central Osaka with southern Osaka Prefecture and Wakayama.
  • D. Korail
    Korail is South Korea's national railroad operator, managing the country's major passenger and freight rail services.
  • E. Daejeon Metro
    Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
  • F. None of above.

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_69a88617439c819094ffb5d16a0f6307 completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69aa63149288819082e7055d0d292d1d completed March 6, 2026, 5:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad8addf4a48190b19cdb861db5eecd completed March 8, 2026, 2:42 p.m.
NEDg Description generation batch_69ad957912808190be5b6ed8d3f20535 completed March 8, 2026, 3:27 p.m.
NED2 Entity disambiguation (via description) batch_69ad97accca48190bc43e94337589a5f completed March 8, 2026, 3:37 p.m.
Created at: March 4, 2026, 7:30 p.m.