D2
E250700
D2 is a line of the Moscow Central Diameters suburban rail system, providing cross-city commuter rail service through Moscow and its surrounding areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| D2 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2267337 — 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: D2 Context triple: [Moscow Central Diameters, hasLine, D2]
-
A.
D-2
D-2 was a 1993 German-led Spacelab space shuttle mission focused on microgravity and life sciences research in low Earth orbit.
-
B.
D
D is a statically typed, compiled systems programming language designed as a modern successor to C and C++, emphasizing high performance, safety features, and programmer productivity.
-
C.
D
D is the vehicle registration code used on license plates for the German city of Düsseldorf.
-
D.
D
The D is a New York City Subway service that runs on the IND Sixth Avenue Line in Manhattan and connects Rockefeller Center with other major destinations across the city.
-
E.
D-1
D-1 was a pioneering early Spacelab mission that helped demonstrate and validate the European-built laboratory’s capabilities for conducting scientific research in space aboard the Space Shuttle.
- 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: D2 Target entity description: D2 is a line of the Moscow Central Diameters suburban rail system, providing cross-city commuter rail service through Moscow and its surrounding areas.
-
A.
D-2
D-2 was a 1993 German-led Spacelab space shuttle mission focused on microgravity and life sciences research in low Earth orbit.
-
B.
D
D is a statically typed, compiled systems programming language designed as a modern successor to C and C++, emphasizing high performance, safety features, and programmer productivity.
-
C.
D
D is the vehicle registration code used on license plates for the German city of Düsseldorf.
-
D.
D
The D is a New York City Subway service that runs on the IND Sixth Avenue Line in Manhattan and connects Rockefeller Center with other major destinations across the city.
-
E.
D-1
D-1 was a pioneering early Spacelab mission that helped demonstrate and validate the European-built laboratory’s capabilities for conducting scientific research in space aboard the Space Shuttle.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
line of the Moscow Central Diameters ⓘ suburban rail line ⓘ |
| branding | MCD D2 ⓘ |
| connects | different radial railway directions through Moscow ⓘ |
| country | Russia ⓘ |
| electrification | overhead line ⓘ |
| fareSystem |
Troika card compatible
ⓘ
integrated with Moscow public transport fare system ⓘ |
| gauge | 1,520 mm ⓘ |
| hasFeature |
cross-city through services without terminal reversal
ⓘ
interchange with multiple metro lines ⓘ suburban and urban stops ⓘ |
| hasModeIntegration |
bus connections at many stations
ⓘ
park-and-ride facilities at some stations ⓘ tram connections at some stations ⓘ |
| hasRole | cross-city rail corridor ⓘ |
| hasServicePattern |
frequent all-day service
ⓘ
peak-hour commuter service ⓘ |
| isIntegratedWith |
Moscow Central Circle
ⓘ
Moscow Metro ⓘ surface public transport in Moscow ⓘ |
| languageOfSignage |
English
ⓘ
Russian ⓘ |
| locatedIn |
Moscow
ⓘ
Moscow Oblast ⓘ |
| networkRole | part of Moscow’s integrated rail transport network ⓘ |
| operator |
Central Suburban Passenger Company
ⓘ
Russian Railways ⓘ |
| ownership | Russian Railways infrastructure ⓘ |
| partOf | Moscow Central Diameters ⓘ |
| primaryFunction | daily commuting ⓘ |
| provides | cross-city commuter rail service ⓘ |
| regionServed | Central Federal District of Russia ⓘ |
| safetySystem | standard Russian mainline railway signalling ⓘ |
| secondaryFunction | regional connectivity ⓘ |
| serves |
Moscow metropolitan area
ⓘ
surface form:
Moscow urban area
surrounding areas of Moscow ⓘ |
| serviceType | suburban rail ⓘ |
| system |
Moscow Railway suburban network
ⓘ
surface form:
Moscow Central Diameters suburban rail system
|
| targetUsers |
city residents
ⓘ
commuters ⓘ suburban residents ⓘ |
| ticketingSystem | electronic ticketing ⓘ |
| transportType | commuter rail ⓘ |
| usesInfrastructureOf |
Russian Railways
ⓘ
surface form:
Russian Railways network
|
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: D2 Description of subject: D2 is a line of the Moscow Central Diameters suburban rail system, providing cross-city commuter rail service through Moscow and its surrounding areas.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
District 2 (Caltrans)