Ulm–Aalen railway
E308379
The Ulm–Aalen railway is a regional rail line in the German state of Baden-Württemberg that connects the cities of Ulm and Aalen as part of the country’s conventional rail network.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Aalen–Ulm railway line | 1 |
| Ulm–Aalen railway canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2746549 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ulm–Aalen railway Context triple: [Ulm Hauptbahnhof, railwayLine, Ulm–Aalen railway]
-
A.
Ulm–Augsburg railway
The Ulm–Augsburg railway is a major rail line in southern Germany that connects the cities of Ulm and Augsburg and forms part of an important east–west transport corridor.
-
B.
Ulm–Friedrichshafen railway
The Ulm–Friedrichshafen railway is a mainline rail route in southern Germany connecting the inland city of Ulm with the lakeside city of Friedrichshafen on Lake Constance.
-
C.
Stuttgart–Ulm railway
The Stuttgart–Ulm railway is a major German rail corridor in Baden-Württemberg that connects the state capital Stuttgart with the city of Ulm and forms part of an important east–west European transport axis.
-
D.
Ulm–Memmingen railway
The Ulm–Memmingen railway is a regional rail line in southern Germany connecting the cities of Ulm and Memmingen as part of the country’s broader rail network.
-
E.
Ulm–Sigmaringen railway
The Ulm–Sigmaringen railway is a regional rail line in the German state of Baden-Württemberg that connects the city of Ulm with Sigmaringen through the Swabian Jura.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ulm–Aalen railway Target entity description: The Ulm–Aalen railway is a regional rail line in the German state of Baden-Württemberg that connects the cities of Ulm and Aalen as part of the country’s conventional rail network.
-
A.
Ulm–Augsburg railway
The Ulm–Augsburg railway is a major rail line in southern Germany that connects the cities of Ulm and Augsburg and forms part of an important east–west transport corridor.
-
B.
Ulm–Friedrichshafen railway
The Ulm–Friedrichshafen railway is a mainline rail route in southern Germany connecting the inland city of Ulm with the lakeside city of Friedrichshafen on Lake Constance.
-
C.
Stuttgart–Ulm railway
The Stuttgart–Ulm railway is a major German rail corridor in Baden-Württemberg that connects the state capital Stuttgart with the city of Ulm and forms part of an important east–west European transport axis.
-
D.
Ulm–Memmingen railway
The Ulm–Memmingen railway is a regional rail line in southern Germany connecting the cities of Ulm and Memmingen as part of the country’s broader rail network.
-
E.
Ulm–Sigmaringen railway
The Ulm–Sigmaringen railway is a regional rail line in the German state of Baden-Württemberg that connects the city of Ulm with Sigmaringen through the Swabian Jura.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
regional rail line ⓘ |
| connects |
Aalen
ⓘ
Ulm ⓘ |
| country | Germany ⓘ |
| electrification | 15 kV 16.7 Hz AC overhead line ⓘ |
| hasDoubleTrackSections | yes ⓘ |
| hasSingleTrackSections | yes ⓘ |
| hasStation |
Aalen Hauptbahnhof
ⓘ
linked to:
Aalen railway station
Heidenheim an der Brenz station ⓘ Langenau (Württ) station ⓘ
linked to:
Langenau station
Nördlingen (historical connection) ⓘ Ulm Hauptbahnhof ⓘ |
| infrastructureManager | DB Netz ⓘ |
| lineNumber | 751 (DB internal line number) ⓘ |
| locatedIn |
Baden-Württemberg
ⓘ
Swabia ⓘ
linked to:
Swabia (Bavaria)
|
| operator | Deutsche Bahn ⓘ |
| owner |
DB Netz
ⓘ
linked to:
DB Netz AG
|
| partOf |
Brenz Railway corridor
ⓘ
linked to:
Brenz Railway
German railway network ⓘ |
| regionServed | eastern Baden-Württemberg ⓘ |
| serviceType |
Regional-Express
ⓘ
Regionalbahn ⓘ |
| terminus |
Aalen Hauptbahnhof
ⓘ
linked to:
Aalen railway station
Ulm Hauptbahnhof ⓘ |
| trackGauge | standard gauge ⓘ |
| usedFor |
freight transport
ⓘ
passenger transport ⓘ regional rail services ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ulm–Aalen railway Description of subject: The Ulm–Aalen railway is a regional rail line in the German state of Baden-Württemberg that connects the cities of Ulm and Aalen as part of the country’s conventional rail network.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ulm–Aalen railway