Triple
T19167763
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Line 8 (Seoul Metropolitan Subway) |
E469229
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
Seoul Metro 8000 series trains
The Seoul Metro 8000 series trains are electric multiple units used on Seoul’s subway system, particularly known for serving Line 8 with modern, high-capacity urban rail service.
|
E1363133
|
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: Seoul Metro 8000 series trains | Statement: [Line 8 (Seoul Metropolitan Subway), rollingStock, Seoul Metro 8000 series trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Seoul Metro 8000 series trains Context triple: [Line 8 (Seoul Metropolitan Subway), rollingStock, Seoul Metro 8000 series trains]
-
A.
Seoul Metro 4000 series trains
The Seoul Metro 4000 series trains are electric multiple units operating on Seoul Subway Line 4, known for serving as a primary fleet for this north–south rapid transit corridor in the Seoul metropolitan area.
-
B.
Seoul Metro 5000 series trains
The Seoul Metro 5000 series trains are electric multiple units operating on Seoul Subway Line 5, designed for high-capacity urban commuter service with modern safety and passenger comfort features.
-
C.
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.
-
D.
Daejeon Metro
Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
-
E.
Daegu Metro
Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
- 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: Seoul Metro 8000 series trains Triple: [Line 8 (Seoul Metropolitan Subway), rollingStock, Seoul Metro 8000 series trains]
Generated description
The Seoul Metro 8000 series trains are electric multiple units used on Seoul’s subway system, particularly known for serving Line 8 with modern, high-capacity urban rail service.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Seoul Metro 8000 series trains Target entity description: The Seoul Metro 8000 series trains are electric multiple units used on Seoul’s subway system, particularly known for serving Line 8 with modern, high-capacity urban rail service.
-
A.
Seoul Metro 4000 series trains
The Seoul Metro 4000 series trains are electric multiple units operating on Seoul Subway Line 4, known for serving as a primary fleet for this north–south rapid transit corridor in the Seoul metropolitan area.
-
B.
Seoul Metro 5000 series trains
The Seoul Metro 5000 series trains are electric multiple units operating on Seoul Subway Line 5, designed for high-capacity urban commuter service with modern safety and passenger comfort features.
-
C.
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.
-
D.
Daejeon Metro
Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
-
E.
Daegu Metro
Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
- 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_69d8dd09d5a081909ae43c286651ae5a |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5f16132e081908c6b8d576163316e |
completed | April 20, 2026, 9:26 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a06f8aa388881909972ef33d6f8657d |
completed | May 15, 2026, 10:42 a.m. |
| NEDg | Description generation | batch_6a06f936e0b08190b614c393174ea885 |
completed | May 15, 2026, 10:45 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a06fa52fa5081908e688e253c1f8f6d |
completed | May 15, 2026, 10:49 a.m. |
Created at: April 10, 2026, 12:06 p.m.