Saint Petersburg Metro
E155005
The Saint Petersburg Metro is a major rapid transit system in Saint Petersburg, Russia, renowned for its deep underground stations and ornate, palace-like architecture.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Saint Petersburg Metro canonical | 43 |
| Saint Petersburg Metro network | 4 |
| Leningrad Metro | 1 |
| Saint Petersburg Metro unified zone | 1 |
| Горэлектротранс / Петербургский метрополитен | 1 |
| Санкт-Петербургский метрополитен | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1339513 — 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: Saint Petersburg Metro Context triple: [Gostiny Dvor metro station, partOf, Saint Petersburg Metro]
-
A.
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.
-
B.
Moscow tram network
The Moscow tram network is an extensive urban tramway system that complements the Moscow Metro by providing surface-level public transportation across the city.
-
C.
Tagansko–Krasnopresnenskaya Line
The Tagansko–Krasnopresnenskaya Line is a major Moscow Metro line known for being one of the system’s busiest routes, connecting key residential districts with central Moscow.
-
D.
Bolshaya Koltsevaya Line
The Bolshaya Koltsevaya Line is a major circular line of the Moscow Metro designed to significantly expand capacity and improve connectivity across the city’s rapid transit network.
-
E.
Volgograd Metrotram
The Volgograd Metrotram is a hybrid light rail and underground tram system in Volgograd, Russia, providing rapid transit-style service along a dedicated north–south corridor through the city.
- 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: Saint Petersburg Metro Target entity description: The Saint Petersburg Metro is a major rapid transit system in Saint Petersburg, Russia, renowned for its deep underground stations and ornate, palace-like architecture.
-
A.
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.
-
B.
Moscow tram network
The Moscow tram network is an extensive urban tramway system that complements the Moscow Metro by providing surface-level public transportation across the city.
-
C.
Tagansko–Krasnopresnenskaya Line
The Tagansko–Krasnopresnenskaya Line is a major Moscow Metro line known for being one of the system’s busiest routes, connecting key residential districts with central Moscow.
-
D.
Bolshaya Koltsevaya Line
The Bolshaya Koltsevaya Line is a major circular line of the Moscow Metro designed to significantly expand capacity and improve connectivity across the city’s rapid transit network.
-
E.
Volgograd Metrotram
The Volgograd Metrotram is a hybrid light rail and underground tram system in Volgograd, Russia, providing rapid transit-style service along a dedicated north–south corridor through the city.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
metro system
ⓘ
rapid transit system ⓘ |
| characteristic |
deep-level metro
ⓘ
ornate station architecture ⓘ palace-like station design ⓘ |
| cityServed |
St. Petersburg
ⓘ
surface form:
Saint Petersburg
|
| connectsTo |
Saint Petersburg bus network
ⓘ
Saint Petersburg tram network ⓘ Saint Petersburg trolleybus network ⓘ |
| constructionType |
cut-and-cover sections
ⓘ
deep-level bored tunnels ⓘ |
| country | Russia ⓘ |
| dailyRidership | over 2 million passengers ⓘ |
| depthRecord |
Admiralteyskaya metro station
ⓘ
surface form:
Admiralteyskaya is among the deepest stations in the world
|
| electrification | 825 V DC third rail ⓘ |
| fareSystem | flat fare ⓘ |
| formerName |
Saint Petersburg Metro
self-linksurface differs
ⓘ
surface form:
Leningrad Metro
|
| hasLine |
Frunzensko-Primorskaya Line
ⓘ
Kirovsko-Vyborgskaya Line ⓘ Moskovsko-Petrogradskaya Line ⓘ Nevsko–Vasileostrovskaya Line ⓘ
surface form:
Nevsko-Vasileostrovskaya Line
Pravoberezhnaya Line ⓘ |
| inception | 1955-11-15 ⓘ |
| languageOfSignage |
English
ⓘ
Russian ⓘ |
| locatedIn |
Leningrad Oblast
ⓘ
St. Petersburg ⓘ
surface form:
Saint Petersburg
|
| notableStation |
Адмиралтейская набережная
ⓘ
surface form:
Admiralteyskaya
Avtovo ⓘ Kirov Factory ⓘ
surface form:
Kirovsky Zavod
Narvskaya ⓘ Ploshchad Vosstaniya ⓘ |
| numberOfLines | 5 ⓘ |
| numberOfStations | 70+ ⓘ |
| openingDate | 1955-11-15 ⓘ |
| operator | Saint Petersburg Metropolitan ⓘ |
| owner |
Saint Petersburg Federal City
ⓘ
surface form:
City of Saint Petersburg
|
| rank |
one of the busiest metro systems in Russia
ⓘ
one of the deepest metro systems in the world ⓘ |
| safetyFeature |
automatic train control
ⓘ
platform screen doors at some stations ⓘ |
| systemLength | ~120 km ⓘ |
| terminusStation |
Begovaya
ⓘ
Devyatkino ⓘ Kupchino ⓘ Parnas ⓘ Prospekt Veteranov ⓘ Rybatskoye ⓘ Shushary ⓘ |
| ticketMedium |
contactless smart cards
ⓘ
paper tickets ⓘ tokens ⓘ |
| trackGauge | 1520 mm ⓘ |
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: Saint Petersburg Metro Description of subject: The Saint Petersburg Metro is a major rapid transit system in Saint Petersburg, Russia, renowned for its deep underground stations and ornate, palace-like architecture.
Referenced by (51)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Saint Petersburg Metro unified zone
this entity surface form:
Saint Petersburg Metro network
this entity surface form:
Leningrad Metro
this entity surface form:
Saint Petersburg Metro network
this entity surface form:
Санкт-Петербургский метрополитен
this entity surface form:
Горэлектротранс / Петербургский метрополитен
subject surface form:
Spasskaya
this entity surface form:
Saint Petersburg Metro network
subject surface form:
Nevsky Prospekt
subject surface form:
Nevsky Prospekt
subject surface form:
Nevsky Prospekt
subject surface form:
Nevsky Prospekt
this entity surface form:
Saint Petersburg Metro network