Gdynia trolleybus system
E76949
The Gdynia trolleybus system is an electric public transit network in the Polish city of Gdynia, operating trolleybuses on overhead-wire routes as part of the city’s urban transport.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Gdynia trolleybus network | 4 |
| Gdynia trolleybus system canonical | 2 |
| integrated with Gdynia urban transport | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T612731 — 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: Gdynia trolleybus system Context triple: [Gdynia, hasTransport, Gdynia trolleybus system]
-
A.
Warsaw Tram system
The Warsaw Tram system is an extensive urban light rail network serving Poland’s capital, forming a core component of the city’s public transportation infrastructure.
-
B.
Warsaw Metro
The Warsaw Metro is the rapid transit system serving Poland's capital, consisting of underground lines that connect key districts across the city.
-
C.
Crimean trolleybus line
The Crimean trolleybus line is a long-distance electric trolleybus route in Crimea, notable for being one of the world’s longest trolleybus lines and connecting cities such as Simferopol, Alushta, and Yalta across mountainous terrain.
-
D.
Trolebús
Trolebús is an electric trolleybus transit system serving Mexico City as part of its broader public transportation network.
-
E.
Chemnitz Stadtbahn
Chemnitz Stadtbahn is a light rail and tram-train system in Chemnitz, Germany, that integrates urban tram lines with regional railway services to provide seamless public transport across the city and surrounding 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: Gdynia trolleybus system Target entity description: The Gdynia trolleybus system is an electric public transit network in the Polish city of Gdynia, operating trolleybuses on overhead-wire routes as part of the city’s urban transport.
-
A.
Warsaw Tram system
The Warsaw Tram system is an extensive urban light rail network serving Poland’s capital, forming a core component of the city’s public transportation infrastructure.
-
B.
Warsaw Metro
The Warsaw Metro is the rapid transit system serving Poland's capital, consisting of underground lines that connect key districts across the city.
-
C.
Crimean trolleybus line
The Crimean trolleybus line is a long-distance electric trolleybus route in Crimea, notable for being one of the world’s longest trolleybus lines and connecting cities such as Simferopol, Alushta, and Yalta across mountainous terrain.
-
D.
Trolebús
Trolebús is an electric trolleybus transit system serving Mexico City as part of its broader public transportation network.
-
E.
Chemnitz Stadtbahn
Chemnitz Stadtbahn is a light rail and tram-train system in Chemnitz, Germany, that integrates urban tram lines with regional railway services to provide seamless public transport across the city and surrounding areas.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
public transport system
ⓘ
trolleybus system ⓘ |
| connects |
Gdynia
ⓘ
surface form:
Gdynia city centre
Gdynia residential districts ⓘ Sopot ⓘ |
| continent | Europe ⓘ |
| country | Poland ⓘ |
| electrificationSystem | 600 V DC ⓘ |
| environmentalImpact | zero local emissions at point of use ⓘ |
| fareSystem |
Gdynia trolleybus system
self-linksurface differs
ⓘ
surface form:
integrated with Gdynia urban transport
ticket-based ⓘ |
| hasMap | Gdynia trolleybus network map ⓘ |
| hasMode |
daytime services
ⓘ
peak-hour services ⓘ |
| hasOfficialWebsite | https://www.pkt.pl (PKT Gdynia) ⓘ |
| hasPart |
trolleybus depot in Gdynia
ⓘ
trolleybus line 21 (Gdynia–Sopot) ⓘ |
| hasRollingStockManufacturer |
MAN
ⓘ
Solaris Bus & Coach ⓘ Škoda Electric ⓘ |
| heritage | one of the oldest trolleybus systems in Poland ⓘ |
| inception | 1943 ⓘ |
| languageOfWorkOrName | Polish ⓘ |
| locatedIn | Gdynia ⓘ |
| locatedInAdministrativeTerritory | Pomeranian Voivodeship ⓘ |
| operatingArea |
Tricity metropolitan area
ⓘ
surface form:
Gdynia metropolitan area
|
| operator |
PKT Gdynia
ⓘ
Przedsiębiorstwo Komunikacji Trolejbusowej w Gdyni ⓘ |
| ownedBy |
Gdynia
ⓘ
surface form:
City of Gdynia
|
| partOf |
Tricity public transport network
ⓘ
public transport in Gdynia ⓘ |
| powerSupply | overhead wire ⓘ |
| primaryEnergySource | electricity ⓘ |
| propulsionSystem | electric motor ⓘ |
| regulates | urban passenger transport in Gdynia (trolleybus segment) ⓘ |
| routeType | fixed-route ⓘ |
| safetySystem |
overhead line protection
ⓘ
traffic signalling ⓘ |
| serviceType |
mass transit
ⓘ
urban transit ⓘ |
| ticketingMethod |
electronic card
ⓘ
mobile ticket ⓘ paper tickets ⓘ |
| tractionType | electric ⓘ |
| uses |
articulated trolleybuses
ⓘ
low-floor trolleybuses ⓘ solo trolleybuses ⓘ trolleybus ⓘ |
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: Gdynia trolleybus system Description of subject: The Gdynia trolleybus system is an electric public transit network in the Polish city of Gdynia, operating trolleybuses on overhead-wire routes as part of the city’s urban transport.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
integrated with Gdynia urban transport
this entity surface form:
Gdynia trolleybus network
this entity surface form:
Gdynia trolleybus network
this entity surface form:
Gdynia trolleybus network
subject surface form:
Działki Leśne
this entity surface form:
Gdynia trolleybus network