Triple

T19734402
Position Surface form Disambiguated ID Type / Status
Subject Gyeongui–Jungang Line E473938 entity
Predicate connectsWithLine P845 FINISHED
Object Incheon Subway Line 2
Incheon Subway Line 2 is a driverless, medium-capacity urban rail line in Incheon, South Korea, serving as part of the city's metropolitan subway network and linking residential districts with major transfer points to the Seoul metropolitan rail system.
E148687 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: Incheon Subway Line 2 | Statement: [Gyeongui–Jungang Line, connectsWithLine, Incheon Subway Line 2]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Incheon Subway Line 2
Context triple: [Gyeongui–Jungang Line, connectsWithLine, Incheon Subway Line 2]
  • A. Seoul Subway Line 2
    Seoul Subway Line 2 is a major circular metro line in Seoul’s subway system, known for serving key commercial and business districts across the city.
  • B. Busan Metro Line 2
    Busan Metro Line 2 is a major east–west subway line in Busan, South Korea, connecting key residential, commercial, and industrial areas across the city.
  • C. Busan Metro Line 1
    Busan Metro Line 1 is the oldest and one of the main rapid transit lines in Busan, South Korea, running in a generally north–south direction and connecting key commercial and residential areas across the city.
  • D. Incheon Subway
    Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
  • E. Shinbundang Line
    The Shinbundang Line is a high-speed, driverless subway line in the Seoul metropolitan area that connects southern Seoul with the satellite city of Bundang.
  • 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: Incheon Subway Line 2
Triple: [Gyeongui–Jungang Line, connectsWithLine, Incheon Subway Line 2]
Generated description
Incheon Subway Line 2 is a driverless, medium-capacity urban rail line in Incheon, South Korea, serving as part of the city's metropolitan subway network and linking residential districts with major transfer points to the Seoul metropolitan rail system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Incheon Subway Line 2
Target entity description: Incheon Subway Line 2 is a driverless, medium-capacity urban rail line in Incheon, South Korea, serving as part of the city's metropolitan subway network and linking residential districts with major transfer points to the Seoul metropolitan rail system.
  • A. Seoul Subway Line 2
    Seoul Subway Line 2 is a major circular metro line in Seoul’s subway system, known for serving key commercial and business districts across the city.
  • B. Busan Metro Line 2
    Busan Metro Line 2 is a major east–west subway line in Busan, South Korea, connecting key residential, commercial, and industrial areas across the city.
  • C. Busan Metro Line 1
    Busan Metro Line 1 is the oldest and one of the main rapid transit lines in Busan, South Korea, running in a generally north–south direction and connecting key commercial and residential areas across the city.
  • D. Incheon Subway chosen
    Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
  • E. Shinbundang Line
    The Shinbundang Line is a high-speed, driverless subway line in the Seoul metropolitan area that connects southern Seoul with the satellite city of Bundang.
  • 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_69d8e517ebd48190979ee76723bcfadf completed April 10, 2026, 11:55 a.m.
NER Named-entity recognition batch_69e6515b4d308190af3be1787fa7c65b completed April 20, 2026, 4:16 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0ae0407a988190af49f57bd8fbdd64 completed May 18, 2026, 9:47 a.m.
NEDg Description generation batch_6a0ae2e2883c81908a6fea37f8db7f1a completed May 18, 2026, 9:58 a.m.
NED2 Entity disambiguation (via description) batch_6a0ae3855838819080bf6883946b62f7 completed May 18, 2026, 10:01 a.m.
Created at: April 10, 2026, 1:47 p.m.