Line 2 of Saint Petersburg Metro
E622369
Line 2 of the Saint Petersburg Metro is one of the city’s main rapid transit lines, running north–south through central Saint Petersburg and serving several key interchange stations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 2 of Saint Petersburg Metro canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T6811969 — 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: Line 2 of Saint Petersburg Metro Context triple: [Line 3 of Saint Petersburg Metro, connectsWith, Line 2 of Saint Petersburg Metro]
-
A.
Line 1 of Saint Petersburg Metro
Line 1 of the Saint Petersburg Metro is the city’s oldest and one of its main north–south rapid transit lines, serving key central and residential districts.
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B.
Line 3 of Saint Petersburg Metro
Line 3 of the Saint Petersburg Metro, also known as the Nevsko–Vasileostrovskaya Line, is a major rapid transit line running generally east–west across the city and serving key central and residential districts.
-
C.
Saint Petersburg Metro
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.
-
D.
Kalininsko–Solntsevskaya Line
The Kalininsko–Solntsevskaya Line is a major east–west rapid transit line of the Moscow Metro, serving numerous residential and commercial districts across the city.
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E.
Kaluzhsko–Rizhskaya Line
The Kaluzhsko–Rizhskaya Line is a major line of the Moscow Metro system, running north–south through the city and serving several densely populated residential and commercial districts.
- 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: Line 2 of Saint Petersburg Metro Target entity description: Line 2 of the Saint Petersburg Metro is one of the city’s main rapid transit lines, running north–south through central Saint Petersburg and serving several key interchange stations.
-
A.
Line 1 of Saint Petersburg Metro
Line 1 of the Saint Petersburg Metro is the city’s oldest and one of its main north–south rapid transit lines, serving key central and residential districts.
-
B.
Line 3 of Saint Petersburg Metro
Line 3 of the Saint Petersburg Metro, also known as the Nevsko–Vasileostrovskaya Line, is a major rapid transit line running generally east–west across the city and serving key central and residential districts.
-
C.
Saint Petersburg Metro
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.
-
D.
Kalininsko–Solntsevskaya Line
The Kalininsko–Solntsevskaya Line is a major east–west rapid transit line of the Moscow Metro, serving numerous residential and commercial districts across the city.
-
E.
Kaluzhsko–Rizhskaya Line
The Kaluzhsko–Rizhskaya Line is a major line of the Moscow Metro system, running north–south through the city and serving several densely populated residential and commercial districts.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport infrastructure ⓘ |
| connects |
northern districts of Saint Petersburg
ⓘ
southern districts of Saint Petersburg ⓘ |
| country | Russia ⓘ |
| hasDirection | north–south ⓘ |
| hasFunction |
rapid transit
ⓘ
urban transportation ⓘ |
| hasInterchangeFunction | key transfer corridor in Saint Petersburg Metro ⓘ |
| hasInterchangeStationsWith | other lines of Saint Petersburg Metro ⓘ |
| hasOperatorType | municipal transit operator ⓘ |
| hasRole | main line of Saint Petersburg Metro ⓘ |
| hasTypeOfService | high-frequency urban rail ⓘ |
| isMainAxis | north–south axis of Saint Petersburg Metro network ⓘ |
| isPubliclyAccessible | true ⓘ |
| isUnderground | true ⓘ |
| locatedIn |
Russia
ⓘ
St. Petersburg ⓘ
surface form:
Saint Petersburg
|
| partOf | Saint Petersburg Metro NERFINISHED ⓘ |
| passesThrough | city centre of Saint Petersburg ⓘ |
| runsThrough | central Saint Petersburg ⓘ |
| serves | commuters in Saint Petersburg ⓘ |
| system | Saint Petersburg Metro NERFINISHED ⓘ |
| transportMode | 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: Line 2 of Saint Petersburg Metro Description of subject: Line 2 of the Saint Petersburg Metro is one of the city’s main rapid transit lines, running north–south through central Saint Petersburg and serving several key interchange stations.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.