Triple
T7394577
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Oslo Metro Line 1 |
E170589
|
entity |
| Predicate | system |
P730
|
FINISHED |
| Object |
T-bane
T-bane is the rapid transit metro system serving Oslo and parts of its surrounding metropolitan area in Norway.
|
E661129
|
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: T-bane | Statement: [Oslo Metro Line 1, system, T-bane]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: T-bane Context triple: [Oslo Metro Line 1, system, T-bane]
-
A.
Bybanen
Bybanen is the modern light rail system serving the Norwegian city of Bergen, providing frequent urban and suburban public transport.
-
B.
Copenhagen Metro
Copenhagen Metro is a rapid transit system in Copenhagen, Denmark, known for its driverless trains, frequent service, and extensive underground and elevated lines connecting key parts of the city and suburbs.
-
C.
S-train network
The S-train network is Copenhagen’s electrified suburban rail system that connects the city center with its surrounding metropolitan areas through frequent, high-capacity commuter services.
-
D.
Länsimetro
Länsimetro is a major westward extension of the Helsinki Metro that connects central Helsinki with the neighboring city of Espoo through a series of new underground stations.
-
E.
Tvärbanan light rail
Tvärbanan light rail is a Stockholm-area tramway system that provides cross-city public transit connections between several suburbs and districts outside the central metro lines.
- 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: T-bane Triple: [Oslo Metro Line 1, system, T-bane]
Generated description
T-bane is the rapid transit metro system serving Oslo and parts of its surrounding metropolitan area in Norway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: T-bane Target entity description: T-bane is the rapid transit metro system serving Oslo and parts of its surrounding metropolitan area in Norway.
-
A.
Bybanen
Bybanen is the modern light rail system serving the Norwegian city of Bergen, providing frequent urban and suburban public transport.
-
B.
Copenhagen Metro
Copenhagen Metro is a rapid transit system in Copenhagen, Denmark, known for its driverless trains, frequent service, and extensive underground and elevated lines connecting key parts of the city and suburbs.
-
C.
S-train network
The S-train network is Copenhagen’s electrified suburban rail system that connects the city center with its surrounding metropolitan areas through frequent, high-capacity commuter services.
-
D.
Länsimetro
Länsimetro is a major westward extension of the Helsinki Metro that connects central Helsinki with the neighboring city of Espoo through a series of new underground stations.
-
E.
Tvärbanan light rail
Tvärbanan light rail is a Stockholm-area tramway system that provides cross-city public transit connections between several suburbs and districts outside the central metro lines.
- 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_69c68a5f04188190ac266569c9280347 |
completed | March 27, 2026, 1:47 p.m. |
| NER | Named-entity recognition | batch_69c6f2279de4819081b8876d02f55388 |
completed | March 27, 2026, 9:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c810fcb1408190a6ed22213bd7830b |
completed | March 28, 2026, 5:33 p.m. |
| NEDg | Description generation | batch_69c8119611148190ae72e52242798dfe |
completed | March 28, 2026, 5:36 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c8121126e08190a95ab570569158cf |
completed | March 28, 2026, 5:38 p.m. |
Created at: March 27, 2026, 3:09 p.m.