Budapest Metro
E70153
The Budapest Metro is the rapid transit system serving Hungary’s capital, notable for including Line 1, one of the oldest electrified underground railway lines in continental Europe.
All labels observed (16)
How this entity was disambiguated
This entity first appeared as the object of triple T559047 — 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: Budapest Metro Context triple: [Budapest, hasMetroSystem, Budapest Metro]
-
A.
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.
-
B.
Brussels Metro
The Brussels Metro is the rapid transit system serving Belgium’s capital, forming the core of its urban public transportation network with multiple underground and light rail lines.
-
C.
Copenhagen Metro
Copenhagen Metro is a rapid transit system in Copenhagen, Denmark, known for its driverless trains, frequent service, and extensive underground and elevated lines connecting key parts of the city and suburbs.
-
D.
Moscow Metro
The Moscow Metro is a major rapid transit system in Moscow renowned for its extensive network, high passenger capacity, and ornately decorated stations often likened to underground palaces.
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E.
Nuremberg U-Bahn
The Nuremberg U-Bahn is the rapid transit system serving Nuremberg and its surrounding area in Germany, known for being one of the first networks to operate fully automated driverless trains.
- 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: Budapest Metro Target entity description: The Budapest Metro is the rapid transit system serving Hungary’s capital, notable for including Line 1, one of the oldest electrified underground railway lines in continental Europe.
-
A.
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.
-
B.
Brussels Metro
The Brussels Metro is the rapid transit system serving Belgium’s capital, forming the core of its urban public transportation network with multiple underground and light rail lines.
-
C.
Copenhagen Metro
Copenhagen Metro is a rapid transit system in Copenhagen, Denmark, known for its driverless trains, frequent service, and extensive underground and elevated lines connecting key parts of the city and suburbs.
-
D.
Moscow Metro
The Moscow Metro is a major rapid transit system in Moscow renowned for its extensive network, high passenger capacity, and ornately decorated stations often likened to underground palaces.
-
E.
Nuremberg U-Bahn
The Nuremberg U-Bahn is the rapid transit system serving Nuremberg and its surrounding area in Germany, known for being one of the first networks to operate fully automated driverless trains.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
metro line ⓘ metro line ⓘ metro line ⓘ metro system ⓘ rapid transit system ⓘ underground railway line ⓘ |
| alsoKnownAs |
Millennium Underground
ⓘ
M1 Millennium Underground Railway ⓘ
surface form:
Millennium Underground Railway
|
| connectsWith |
Budapest bus lines
ⓘ
surface form:
Budapest bus network
Budapest suburban rail ⓘ Budapest tram network ⓘ |
| country | Hungary ⓘ |
| electrification |
electric railway
ⓘ
electric railway ⓘ |
| fareSystem | integrated with Budapest public transport ⓘ |
| hasGauge | standard gauge ⓘ |
| hasLine |
Budapest Metro
self-linksurface differs
ⓘ
surface form:
Budapest Metro Line 1
Budapest Metro Line 2 ⓘ Budapest Metro Line 3 ⓘ Budapest Metro Line 4 ⓘ |
| hasStation |
Batthyány tér
ⓘ
Deák Ferenc tér ⓘ Kelenföld vasútállomás ⓘ Keleti pályaudvar ⓘ Kőbánya-Kispest ⓘ Mexikói út ⓘ Nagyvárad tér ⓘ Széll Kálmán tér ⓘ Örs vezér tere ⓘ |
| heritageDesignation | UNESCO World Heritage Site ⓘ |
| heritageStatus |
UNESCO World Heritage Site
ⓘ
surface form:
UNESCO World Heritage Site component
|
| inception | 1896 ⓘ |
| locatedIn |
Budapest
ⓘ
Budapest ⓘ |
| numberOfLines | 4 ⓘ |
| openingDate | 1896 ⓘ |
| operator |
BKV
ⓘ
Budapesti Közlekedési Vállalat ⓘ |
| owner | Budapest ⓘ |
| partOf |
Budapest Metro
self-linksurface differs
ⓘ
Budapest Metro self-linksurface differs ⓘ Budapest Metro self-linksurface differs ⓘ Budapest Metro self-linksurface differs ⓘ |
| serves |
Budapest
ⓘ
Budapest ⓘ
surface form:
Budapest metropolitan area
|
| significantEvent |
first electrified underground railway on continental Europe
ⓘ
opening of Line 4 in 2014 ⓘ opening of Millennium Underground Railway in 1896 ⓘ |
| transportType | rail ⓘ |
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: Budapest Metro Description of subject: The Budapest Metro is the rapid transit system serving Hungary’s capital, notable for including Line 1, one of the oldest electrified underground railway lines in continental Europe.
Referenced by (65)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Budapest Metro network
this entity surface form:
Metro Line 1 (Budapest Metro)
this entity surface form:
Metro Line 1 (Budapest Metro)
this entity surface form:
Budapest Metro system
this entity surface form:
Budapest Metro Line 1
subject surface form:
Yellow Line (Budapest Metro)
this entity surface form:
Budapest Metro Line 1
subject surface form:
Yellow Line (Budapest Metro)
subject surface form:
Yellow Line (Budapest Metro)
this entity surface form:
Franz Joseph Underground Electric Railway
this entity surface form:
M1 Budapest Metro line