Triple
T17175344
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Siemens-Duewag U2 |
E416844
|
entity |
| Predicate | usedInTransportSystem |
P941
|
FINISHED |
| Object |
Stadtbahn Rhein-Sieg
Stadtbahn Rhein-Sieg is a light rail and tram network serving the Cologne/Bonn metropolitan region in Germany as part of the local public transport system.
|
E1261523
|
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: Stadtbahn Rhein-Sieg | Statement: [Siemens-Duewag U2, usedInTransportSystem, Stadtbahn Rhein-Sieg]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Stadtbahn Rhein-Sieg Context triple: [Siemens-Duewag U2, usedInTransportSystem, Stadtbahn Rhein-Sieg]
-
A.
Stadtbahn Rhein-Ruhr
The Stadtbahn Rhein-Ruhr is a light rail and rapid transit network serving multiple cities in Germany’s densely populated Rhine-Ruhr metropolitan region.
-
B.
Cologne Stadtbahn
The Cologne Stadtbahn is a light rail and rapid transit network serving Cologne and its surrounding region, integrating underground and surface lines for urban and suburban transportation.
-
C.
Stadtbahn Rhein-Neckar
Stadtbahn Rhein-Neckar is a regional light rail and tram-train network serving the Rhine-Neckar metropolitan area in southwestern Germany, connecting cities such as Mannheim, Ludwigshafen, and Heidelberg.
-
D.
Stadtbahn Rhein-Main
Stadtbahn Rhein-Main is a light rail and rapid transit network serving the Frankfurt Rhine-Main metropolitan region in Germany.
-
E.
Rhine-Ruhr S-Bahn
The Rhine-Ruhr S-Bahn is a regional rapid transit network serving the densely populated Rhine-Ruhr metropolitan area in western Germany, connecting major cities such as Duisburg, Düsseldorf, Essen, and Dortmund.
- 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: Stadtbahn Rhein-Sieg Triple: [Siemens-Duewag U2, usedInTransportSystem, Stadtbahn Rhein-Sieg]
Generated description
Stadtbahn Rhein-Sieg is a light rail and tram network serving the Cologne/Bonn metropolitan region in Germany as part of the local public transport system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Stadtbahn Rhein-Sieg Target entity description: Stadtbahn Rhein-Sieg is a light rail and tram network serving the Cologne/Bonn metropolitan region in Germany as part of the local public transport system.
-
A.
Stadtbahn Rhein-Ruhr
The Stadtbahn Rhein-Ruhr is a light rail and rapid transit network serving multiple cities in Germany’s densely populated Rhine-Ruhr metropolitan region.
-
B.
Cologne Stadtbahn
The Cologne Stadtbahn is a light rail and rapid transit network serving Cologne and its surrounding region, integrating underground and surface lines for urban and suburban transportation.
-
C.
Stadtbahn Rhein-Neckar
Stadtbahn Rhein-Neckar is a regional light rail and tram-train network serving the Rhine-Neckar metropolitan area in southwestern Germany, connecting cities such as Mannheim, Ludwigshafen, and Heidelberg.
-
D.
Stadtbahn Rhein-Main
Stadtbahn Rhein-Main is a light rail and rapid transit network serving the Frankfurt Rhine-Main metropolitan region in Germany.
-
E.
Rhine-Ruhr S-Bahn
The Rhine-Ruhr S-Bahn is a regional rapid transit network serving the densely populated Rhine-Ruhr metropolitan area in western Germany, connecting major cities such as Duisburg, Düsseldorf, Essen, and Dortmund.
- 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_69d886d5f34c8190b24564dfaa63f3fb |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e3fc0cec448190b30466628a2ff23f |
completed | April 18, 2026, 9:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0180c5e2dc81909f843a07bbf7e41c |
completed | May 11, 2026, 7:09 a.m. |
| NEDg | Description generation | batch_6a01823e29908190b4c5c2ecaf61151b |
completed | May 11, 2026, 7:16 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a01829fb010819091199a639cde98d6 |
completed | May 11, 2026, 7:17 a.m. |
Created at: April 10, 2026, 5:37 a.m.