Triple
T17175350
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Siemens-Duewag U2 |
E416844
|
entity |
| Predicate | usedInTransportSystem |
P941
|
FINISHED |
| Object |
Stadtbahn Rhein-Ahr
Stadtbahn Rhein-Ahr is a regional light rail system in Germany that operates modern tram and Stadtbahn services connecting communities along the Rhine and Ahr rivers.
|
E1270334
|
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-Ahr | Statement: [Siemens-Duewag U2, usedInTransportSystem, Stadtbahn Rhein-Ahr]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Stadtbahn Rhein-Ahr Context triple: [Siemens-Duewag U2, usedInTransportSystem, Stadtbahn Rhein-Ahr]
-
A.
Stadtbahn Rhein-Lahn
Stadtbahn Rhein-Lahn is a regional light rail transit system in Germany that operates Siemens-Duewag U2 trains to connect communities along the Rhine and Lahn rivers.
-
B.
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.
-
C.
Stadtbahn Rhein-Haardt
Stadtbahn Rhein-Haardt is a regional light rail/tramway system in southwestern Germany that connects cities in the Rhine-Neckar area.
-
D.
Stadtbahn Rhein-Erft
Stadtbahn Rhein-Erft is a regional light rail system serving the Rhein-Erft district in North Rhine-Westphalia, Germany.
-
E.
Stadtbahn Rhein-Wupper
Stadtbahn Rhein-Wupper is a regional light rail and tram network in North Rhine-Westphalia, Germany, serving cities in the Rhine and Wupper river areas.
- 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-Ahr Triple: [Siemens-Duewag U2, usedInTransportSystem, Stadtbahn Rhein-Ahr]
Generated description
Stadtbahn Rhein-Ahr is a regional light rail system in Germany that operates modern tram and Stadtbahn services connecting communities along the Rhine and Ahr rivers.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Stadtbahn Rhein-Ahr Target entity description: Stadtbahn Rhein-Ahr is a regional light rail system in Germany that operates modern tram and Stadtbahn services connecting communities along the Rhine and Ahr rivers.
-
A.
Stadtbahn Rhein-Lahn
Stadtbahn Rhein-Lahn is a regional light rail transit system in Germany that operates Siemens-Duewag U2 trains to connect communities along the Rhine and Lahn rivers.
-
B.
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.
-
C.
Stadtbahn Rhein-Haardt
Stadtbahn Rhein-Haardt is a regional light rail/tramway system in southwestern Germany that connects cities in the Rhine-Neckar area.
-
D.
Stadtbahn Rhein-Erft
Stadtbahn Rhein-Erft is a regional light rail system serving the Rhein-Erft district in North Rhine-Westphalia, Germany.
-
E.
Stadtbahn Rhein-Wupper
Stadtbahn Rhein-Wupper is a regional light rail and tram network in North Rhine-Westphalia, Germany, serving cities in the Rhine and Wupper river areas.
- 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_6a01b80d3a3081908a255a40bd7a72a0 |
completed | May 11, 2026, 11:05 a.m. |
| NEDg | Description generation | batch_6a01b8ebb5ac8190a98fcaba61c45955 |
completed | May 11, 2026, 11:09 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a01b9676d54819098315611857dd6ea |
completed | May 11, 2026, 11:11 a.m. |
Created at: April 10, 2026, 5:37 a.m.