Vienna U2 line
E573842
The Vienna U2 line is one of the city’s main underground metro lines, running across central districts including Leopoldstadt and connecting key cultural, residential, and event areas.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Vienna U-Bahn line U2 | 14 |
| Vienna U2 line canonical | 5 |
| U2 (Vienna U-Bahn) | 2 |
| Vienna U-Bahn Line U2 | 2 |
| U2 line (Vienna U-Bahn) | 1 |
| Vienna U-Bahn line U2 (Museumsquartier nearby) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6133621 — 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: Vienna U2 line Context triple: [Leopoldstadt, hasPublicTransport, Vienna U2 line]
-
A.
Vienna U1 line
The Vienna U1 line is one of the main lines of the Vienna U-Bahn rapid transit system, running in a north–south direction and connecting several key districts and transport hubs across the city.
-
B.
Vienna S-Bahn
The Vienna S-Bahn is a suburban rail network serving Vienna and its surrounding regions, providing frequent commuter connections that integrate with the city’s public transport system.
-
C.
Vienna–Gänserndorf railway line
The Vienna–Gänserndorf railway line is a regional rail route in eastern Austria that connects Vienna with the town of Gänserndorf and serves as part of the commuter network for the surrounding area.
-
D.
Vienna U-Bahn line U3
Vienna U-Bahn line U3 is a major east–west underground metro line in Vienna, Austria, connecting residential districts with the city center and key transport hubs.
-
E.
Budapest Metro Line 2
Budapest Metro Line 2 is one of the main rapid transit lines in Budapest, running east–west across the city and connecting key central and suburban areas.
- 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: Vienna U2 line Target entity description: The Vienna U2 line is one of the city’s main underground metro lines, running across central districts including Leopoldstadt and connecting key cultural, residential, and event areas.
-
A.
Vienna U1 line
The Vienna U1 line is one of the main lines of the Vienna U-Bahn rapid transit system, running in a north–south direction and connecting several key districts and transport hubs across the city.
-
B.
Vienna S-Bahn
The Vienna S-Bahn is a suburban rail network serving Vienna and its surrounding regions, providing frequent commuter connections that integrate with the city’s public transport system.
-
C.
Vienna–Gänserndorf railway line
The Vienna–Gänserndorf railway line is a regional rail route in eastern Austria that connects Vienna with the town of Gänserndorf and serves as part of the commuter network for the surrounding area.
-
D.
Vienna U-Bahn line U3
Vienna U-Bahn line U3 is a major east–west underground metro line in Vienna, Austria, connecting residential districts with the city center and key transport hubs.
-
E.
Budapest Metro Line 2
Budapest Metro Line 2 is one of the main rapid transit lines in Budapest, running east–west across the city and connecting key central and suburban areas.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Vienna U-Bahn line
ⓘ
rapid transit line ⓘ |
| color | purple ⓘ |
| connectsAreaType |
cultural areas
ⓘ
event venues ⓘ residential areas ⓘ |
| connectsToLine |
Vienna U1 line
ⓘ
Vienna U3 line ⓘ Vienna U4 line ⓘ
linked to:
Vienna U4 metro line
Vienna U6 line ⓘ
linked to:
U6 (Vienna U-Bahn)
|
| electrification | 750 V DC third rail ⓘ |
| fareSystem | Verkehrsverbund Ost-Region ⓘ |
| hasAccessibilityFeature |
audio passenger information systems
ⓘ
step-free access at many stations ⓘ visual passenger information systems ⓘ |
| hasFeature |
elevated sections
ⓘ
underground sections ⓘ |
| hasRollingStock | electric multiple units ⓘ |
| lineNumber | U2 ⓘ |
| locatedIn | Vienna ⓘ |
| locatedInCountry | Austria ⓘ |
| operator | Wiener Linien ⓘ |
| partOfNetwork | Vienna public transport network ⓘ |
| primaryFunction | urban mass transit ⓘ |
| safetySystem | automatic train protection ⓘ |
| servesDistrict |
Donaustadt
ⓘ
Favoriten ⓘ Innere Stadt ⓘ Landstraße ⓘ Leopoldstadt ⓘ |
| servesLandmark |
Donaustadt residential areas
ⓘ
MuseumsQuartier area ⓘ Prater ⓘ Praterstern transport hub ⓘ
linked to:
Praterstern railway station
Rathaus area ⓘ Stadion area ⓘ UNO City area ⓘ
linked to:
UNO City
|
| servesPurpose |
daily commuting
ⓘ
event access ⓘ |
| system |
Vienna U-Bahn
ⓘ
linked to:
Vienna U-Bahn network
|
| ticketingSystem | integrated with Vienna trams and buses ⓘ |
| transportMode | metro ⓘ |
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: Vienna U2 line Description of subject: The Vienna U2 line is one of the city’s main underground metro lines, running across central districts including Leopoldstadt and connecting key cultural, residential, and event areas.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Leopoldstadt district, Vienna
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
subject linked to:
U1 metro line
linked to: Vienna U2 line
Naturhistorisches Museum Wien
→
publicTransitAccess
→
Vienna U-Bahn line U2 (Museumsquartier nearby)
ⓘ
linked to: Vienna U2 line
subject linked to:
Karlsplatz Stadtbahn Station in Vienna
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
subject linked to:
Karlsplatz, Vienna, Austria
linked to: Vienna U2 line
subject linked to:
Wurstelprater amusement park
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line
linked to: Vienna U2 line