Moscow Metro 81-776 series
E248904
The Moscow Metro 81-776 series is a modern generation of metro trainsets used on Moscow’s network, featuring improved energy efficiency, passenger comfort, and advanced onboard systems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Moscow Metro 81-776 series canonical | 1 |
| Moscow Metro 81-777 series | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2223428 — 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: Moscow Metro 81-776 series Context triple: [Bolshaya Koltsevaya Line, hasRollingStock, Moscow Metro 81-776 series]
-
A.
Moscow Monorail
Moscow Monorail is an elevated urban transit line in Moscow that operates with monorail technology and complements the city’s metro system.
-
B.
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.
-
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.
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.
-
E.
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.
- 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: Moscow Metro 81-776 series Target entity description: The Moscow Metro 81-776 series is a modern generation of metro trainsets used on Moscow’s network, featuring improved energy efficiency, passenger comfort, and advanced onboard systems.
-
A.
Moscow Monorail
Moscow Monorail is an elevated urban transit line in Moscow that operates with monorail technology and complements the city’s metro system.
-
B.
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.
-
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.
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.
-
E.
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.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
electric multiple unit
ⓘ
metro rolling stock ⓘ passenger train ⓘ |
| country | Russia ⓘ |
| designedFor |
high passenger capacity
ⓘ
underground operation ⓘ |
| designedToImprove |
energy efficiency
ⓘ
passenger comfort ⓘ |
| environmentalAspect |
lower noise emissions in tunnels
ⓘ
reduced energy consumption compared to older stock ⓘ |
| feature |
CCTV for passenger safety
ⓘ
LED interior lighting ⓘ advanced onboard diagnostics ⓘ air conditioning ⓘ condition monitoring of equipment ⓘ driver assistance systems ⓘ energy‑efficient traction equipment ⓘ enhanced sound insulation ⓘ improved energy efficiency ⓘ improved seating ergonomics ⓘ modern exterior design ⓘ modern passenger information systems ⓘ noise reduction measures ⓘ regenerative braking ⓘ video surveillance system ⓘ wide gangways between cars ⓘ |
| gauge | 1520 mm ⓘ |
| hasOnboardSystem |
climate control
ⓘ
diagnostic systems ⓘ passenger information displays ⓘ video surveillance ⓘ |
| network | Moscow Metro network ⓘ |
| operator | Moscow Metro ⓘ |
| powerCollectionMethod | third rail ⓘ |
| powerCollectionVoltage | 825 V DC ⓘ |
| railwaySystem | Moscow Metro ⓘ |
| serviceType | all‑stop metro service ⓘ |
| traction | electric ⓘ |
| usedFor |
passenger transportation
ⓘ
urban rapid transit ⓘ |
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: Moscow Metro 81-776 series Description of subject: The Moscow Metro 81-776 series is a modern generation of metro trainsets used on Moscow’s network, featuring improved energy efficiency, passenger comfort, and advanced onboard systems.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Moscow Metro 81-777 series