Hamburg U-Bahn line U1
E894681
Hamburg U-Bahn line U1 is a major rapid transit line in Hamburg’s underground network, running from the city center through several northern and northeastern districts to suburban areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hamburg U-Bahn line U1 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10950751 — 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: Hamburg U-Bahn line U1 Context triple: [Fuhlsbüttel, hasPublicTransport, Hamburg U-Bahn line U1]
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A.
Hamburg U-Bahn line U3
Hamburg U-Bahn line U3 is a historic circular metro line that runs largely above ground, offering key transit service and scenic views through central and harbor areas of Hamburg.
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B.
Berlin U-Bahn line U1
Berlin U-Bahn line U1 is one of the oldest and most central lines in Berlin’s subway network, running predominantly east–west across the inner city and serving several major commercial and tourist areas.
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C.
Berlin U-Bahn line U5
Berlin U-Bahn line U5 is a major underground metro line in Berlin that runs east–west across the city, connecting central hubs like Alexanderplatz and Brandenburger Tor with eastern districts such as Lichtenberg and Hönow.
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D.
U-Bahn line U1
U-Bahn line U1 is one of Berlin’s oldest and most central underground lines, running mainly east–west and connecting key inner-city districts including Friedrichshain and Kreuzberg.
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E.
Berlin U-Bahn line U2
Berlin U-Bahn line U2 is one of the main metro lines in Berlin, running east–west across the city and connecting key central districts and landmarks.
- 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: Hamburg U-Bahn line U1 Target entity description: Hamburg U-Bahn line U1 is a major rapid transit line in Hamburg’s underground network, running from the city center through several northern and northeastern districts to suburban areas.
-
A.
Hamburg U-Bahn line U3
Hamburg U-Bahn line U3 is a historic circular metro line that runs largely above ground, offering key transit service and scenic views through central and harbor areas of Hamburg.
-
B.
Berlin U-Bahn line U1
Berlin U-Bahn line U1 is one of the oldest and most central lines in Berlin’s subway network, running predominantly east–west across the inner city and serving several major commercial and tourist areas.
-
C.
Berlin U-Bahn line U5
Berlin U-Bahn line U5 is a major underground metro line in Berlin that runs east–west across the city, connecting central hubs like Alexanderplatz and Brandenburger Tor with eastern districts such as Lichtenberg and Hönow.
-
D.
U-Bahn line U1
U-Bahn line U1 is one of Berlin’s oldest and most central underground lines, running mainly east–west and connecting key inner-city districts including Friedrichshain and Kreuzberg.
-
E.
Berlin U-Bahn line U2
Berlin U-Bahn line U2 is one of the main metro lines in Berlin, running east–west across the city and connecting key central districts and landmarks.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Hamburg U-Bahn line
ⓘ
rapid transit line ⓘ |
| category |
Transport in Hamburg
ⓘ
Underground rapid transit in Germany ⓘ |
| connects |
northeastern districts of Hamburg
ⓘ
northern districts of Hamburg ⓘ suburban areas around Hamburg ⓘ |
| connectsWith |
Hamburg U-Bahn line U2
NERFINISHED
ⓘ
Hamburg U-Bahn line U3 NERFINISHED ⓘ Hamburg U-Bahn line U4 NERFINISHED ⓘ |
| country | Germany NERFINISHED ⓘ |
| electrification | third rail ⓘ |
| fareSystem | HVV tariff NERFINISHED ⓘ |
| hasInterchange |
Hauptbahnhof Süd station
NERFINISHED
ⓘ
Jungfernstieg station NERFINISHED ⓘ Kellinghusenstraße station NERFINISHED ⓘ Ohlsdorf station NERFINISHED ⓘ |
| hasStation |
Hauptbahnhof Süd station
NERFINISHED
ⓘ
Jungfernstieg station NERFINISHED ⓘ Kellinghusenstraße station NERFINISHED ⓘ Ohlsdorf station NERFINISHED ⓘ Wandsbek Markt station NERFINISHED ⓘ |
| inception | early 20th century ⓘ |
| lineColour | light blue ⓘ |
| lineNumber | U1 NERFINISHED ⓘ |
| locale | Hamburg NERFINISHED ⓘ |
| mapSymbol | U1 in light blue circle ⓘ |
| modeOfTransport | underground railway ⓘ |
| network | Hamburger Verkehrsverbund NERFINISHED ⓘ |
| numberOfTracks | 2 ⓘ |
| operator | Hamburger Hochbahn AG NERFINISHED ⓘ |
| ownedBy | Free and Hanseatic City of Hamburg NERFINISHED ⓘ |
| partOf | Hamburg public transport network NERFINISHED ⓘ |
| passesThrough |
Hamburg city centre
NERFINISHED
ⓘ
Hamburg-Nord borough NERFINISHED ⓘ Norderstedt NERFINISHED ⓘ Wandsbek borough NERFINISHED ⓘ |
| primaryDirection | north–south ⓘ |
| railwaySignalling | automatic train protection ⓘ |
| rollingStock |
DT4 trains
NERFINISHED
ⓘ
DT5 trains NERFINISHED ⓘ |
| secondaryDirection | east–west ⓘ |
| serves | commuter traffic ⓘ |
| serviceType | rapid transit ⓘ |
| system | Hamburg U-Bahn NERFINISHED ⓘ |
| terminus |
Großhansdorf station
NERFINISHED
ⓘ
Norderstedt Mitte station NERFINISHED ⓘ Ohlstedt station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
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: Hamburg U-Bahn line U1 Description of subject: Hamburg U-Bahn line U1 is a major rapid transit line in Hamburg’s underground network, running from the city center through several northern and northeastern districts to suburban areas.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Kennedybrücke (Hamburg)