B90 stock
E283370
B90 stock is a class of automated light rail vehicles used on London's Docklands Light Railway, introduced in the early 1990s to expand and modernize the system’s fleet.
All labels observed (1)
| Label | Occurrences |
|---|---|
| B90 stock canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2634653 — 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: B90 stock Context triple: [Docklands Light Railway, rollingStock, B90 stock]
-
A.
M90
M90 is a major motorway in Scotland that connects Perth to the Forth Road Bridge, forming a key part of the route between the Scottish Highlands and Edinburgh.
-
B.
B190
B190 is the ICAO aircraft type designator for the Beechcraft 1900, a twin-engine turboprop regional airliner commonly used for commuter and cargo operations.
-
C.
C90
C90 is the informal name for the 1990 standardization of the C programming language defined by ISO/IEC 9899.
-
D.
BB-39
BB-39 is the hull classification symbol for USS Arizona, a Pennsylvania-class battleship of the United States Navy sunk during the attack on Pearl Harbor in 1941.
-
E.
B82
B82 is a New York City bus route that runs through Brooklyn, connecting neighborhoods such as Canarsie with other parts of the borough.
- 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: B90 stock Target entity description: B90 stock is a class of automated light rail vehicles used on London's Docklands Light Railway, introduced in the early 1990s to expand and modernize the system’s fleet.
-
A.
M90
M90 is a major motorway in Scotland that connects Perth to the Forth Road Bridge, forming a key part of the route between the Scottish Highlands and Edinburgh.
-
B.
B190
B190 is the ICAO aircraft type designator for the Beechcraft 1900, a twin-engine turboprop regional airliner commonly used for commuter and cargo operations.
-
C.
C90
C90 is the informal name for the 1990 standardization of the C programming language defined by ISO/IEC 9899.
-
D.
BB-39
BB-39 is the hull classification symbol for USS Arizona, a Pennsylvania-class battleship of the United States Navy sunk during the attack on Pearl Harbor in 1941.
-
E.
B82
B82 is a New York City bus route that runs through Brooklyn, connecting neighborhoods such as Canarsie with other parts of the borough.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Docklands Light Railway rolling stock
ⓘ
electric multiple unit ⓘ light rail vehicle ⓘ rolling stock ⓘ |
| automationLevel | fully automated ⓘ |
| brakeType | electro‑pneumatic brakes ⓘ |
| cityServed |
London, England
ⓘ
surface form:
London
|
| control |
automatic train operation
ⓘ
driverless operation ⓘ |
| country | United Kingdom ⓘ |
| designedFor |
high acceleration
ⓘ
high‑frequency operation ⓘ light metro service ⓘ short station spacing ⓘ |
| doorType | sliding doors ⓘ |
| electrificationSystem | 750 V DC third rail ⓘ |
| gauge | standard gauge ⓘ |
| hasSuccessor |
B2K stock
ⓘ
B92 stock ⓘ |
| introduced |
1991
ⓘ
early 1990s ⓘ |
| location |
London, England
ⓘ
surface form:
London
|
| network |
Docklands Light Railway
ⓘ
surface form:
Docklands Light Railway network
|
| operator | Docklands Light Railway ⓘ |
| partOf | DLR rolling stock fleet ⓘ |
| passengerAccess | level boarding ⓘ |
| powerCollectionMethod | third rail ⓘ |
| propulsion | electric traction motors ⓘ |
| purpose |
fleet expansion
ⓘ
fleet modernisation ⓘ |
| railwayLineServed | Docklands Light Railway ⓘ |
| railwaySystem | London rail transport ⓘ |
| regionServed |
East London
ⓘ
London Docklands ⓘ |
| safetySystem | automatic train protection ⓘ |
| serviceStatus | in service ⓘ |
| serviceType |
light rail passenger service
ⓘ
urban transit ⓘ |
| trackGauge | 1435 mm ⓘ |
| traction | electric ⓘ |
| usedFor |
commuter transport
ⓘ
public transport ⓘ |
| usedOn |
at‑grade sections
ⓘ
elevated sections ⓘ |
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: B90 stock Description of subject: B90 stock is a class of automated light rail vehicles used on London's Docklands Light Railway, introduced in the early 1990s to expand and modernize the system’s fleet.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.