VBZ tram system
E415449
The VBZ tram system is the extensive urban tram network operated by Verkehrsbetriebe Zürich that serves the city of Zurich and its surrounding areas.
All labels observed (5)
| Label | Occurrences |
|---|---|
| VBZ trolleybus network | 2 |
| VBZ bus network | 1 |
| VBZ tram lines | 1 |
| VBZ tram network | 1 |
| VBZ tram system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4117740 — 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: VBZ tram system Context triple: [Tram line 10 (VBZ), partOf, VBZ tram system]
-
A.
SL tramways
SL tramways is the public tram network serving Stockholm, Sweden, operated under the SL (Storstockholms Lokaltrafik) regional transit system.
-
B.
SL95 tram
The SL95 tram is a high-floor, bi-directional tram model used in Oslo, Norway, known for its large capacity and operation on the city’s light rail and tram network.
-
C.
Tram 18
Tram 18 is a tram line in Geneva’s public transport system that connects key districts within the city and its surrounding areas.
-
D.
Alstom Citadis tram
The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
-
E.
T-68 tram
The T-68 tram was a type of light rail vehicle used on Greater Manchester’s Metrolink system in the UK before being replaced by newer models.
- 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: VBZ tram system Target entity description: The VBZ tram system is the extensive urban tram network operated by Verkehrsbetriebe Zürich that serves the city of Zurich and its surrounding areas.
-
A.
SL tramways
SL tramways is the public tram network serving Stockholm, Sweden, operated under the SL (Storstockholms Lokaltrafik) regional transit system.
-
B.
SL95 tram
The SL95 tram is a high-floor, bi-directional tram model used in Oslo, Norway, known for its large capacity and operation on the city’s light rail and tram network.
-
C.
Tram 18
Tram 18 is a tram line in Geneva’s public transport system that connects key districts within the city and its surrounding areas.
-
D.
Alstom Citadis tram
The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
-
E.
T-68 tram
The T-68 tram was a type of light rail vehicle used on Greater Manchester’s Metrolink system in the UK before being replaced by newer models.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
public transport system
ⓘ
tram network ⓘ |
| connectsWith |
VBZ tram system
self-linksurface differs
ⓘ
surface form:
VBZ bus network
VBZ tram system self-linksurface differs ⓘ
surface form:
VBZ trolleybus network
Zürich S-Bahn ⓘ Zürich lake shipping services ⓘ |
| country | Switzerland ⓘ |
| fareIntegrationWith |
Zürich S-Bahn
ⓘ
local buses in ZVV ⓘ regional trains in ZVV ⓘ |
| fareSystem | ZVV zonal fare system ⓘ |
| gauge |
1000 mm
ⓘ
metre gauge ⓘ |
| hasAccessibilityFeature | low-floor trams ⓘ |
| hasDepotIn |
Zurich
ⓘ
surface form:
Zürich
|
| hasEnvironmentalAttribute | zero local emissions at point of use ⓘ |
| hasLanguageOfOperation | German ⓘ |
| hasMapType | network diagram ⓘ |
| hasRollingStockType |
Cobra trams
ⓘ
surface form:
Cobra tram
Flexity Zürich tram ⓘ Tram 2000 ⓘ |
| hasRouteType |
suburban tram route
ⓘ
urban tram route ⓘ |
| hasServicePattern | high-frequency urban service ⓘ |
| hasStopIn |
Zurich
ⓘ
surface form:
Bellevue, Zürich
central Zurich ⓘ
surface form:
Central, Zürich
Paradeplatz, Zürich ⓘ Zurich Hauptbahnhof ⓘ
surface form:
Zürich Hauptbahnhof area
|
| hasTicketInspection | proof-of-payment system ⓘ |
| locatedIn |
Canton of Zürich
NERFINISHED
ⓘ
City of Zürich NERFINISHED ⓘ Switzerland ⓘ |
| modeOfTransport | tram ⓘ |
| operator |
VBZ
ⓘ
Verkehrsbetriebe Zürich ⓘ |
| ownedBy | City of Zürich NERFINISHED ⓘ |
| partOf |
Zürcher Verkehrsverbund
ⓘ
Zürich public transport network ⓘ |
| powerSupply | overhead line ⓘ |
| primaryCityServed |
Zurich
ⓘ
surface form:
Zürich
|
| safetyAuthority |
Federal Office of Transport
ⓘ
surface form:
Swiss Federal Office of Transport
|
| serves |
Zürich city centre
ⓘ
Zürich suburbs ⓘ Zürich urban area NERFINISHED ⓘ |
| traction | electric ⓘ |
| usesSignalling | street-running tramway signalling ⓘ |
| usesTicketingSystem | integrated ZVV tickets ⓘ |
| website | https://www.vbz.ch ⓘ |
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: VBZ tram system Description of subject: The VBZ tram system is the extensive urban tram network operated by Verkehrsbetriebe Zürich that serves the city of Zurich and its surrounding areas.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tram line 10 (VBZ)
this entity surface form:
VBZ trolleybus network
this entity surface form:
VBZ tram network
this entity surface form:
VBZ trolleybus network
this entity surface form:
VBZ bus network