Green Arrow class
E760834
The Green Arrow class, officially known as the LNER Class V2, was a class of British 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Green Arrow class canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8845371 — 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: Green Arrow class Context triple: [LNER Class V2, nicknamed, Green Arrow class]
-
A.
Ranger class
The Ranger class was a group of early U.S. Navy aircraft carriers that helped pioneer carrier design and operations before World War II.
-
B.
Bagley class
The Bagley class was a group of U.S. Navy destroyers built in the late 1930s that saw extensive service during World War II, particularly in the Pacific Theater.
-
C.
Scarlet Lady-class
The Scarlet Lady-class is a series of modern cruise ships operated by Virgin Voyages, known for their adults-only focus, contemporary design, and unconventional approach to cruising.
-
D.
Renown class
The Renown class was a pair of British Royal Navy battlecruisers built during World War I, known for their high speed, heavy armament, and extensive modernizations between the wars.
-
E.
Valour-class frigates
Valour-class frigates are a class of modern multi-role warships operated by the South African Navy, designed for anti-air, anti-surface, and anti-submarine warfare.
- 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: Green Arrow class Target entity description: The Green Arrow class, officially known as the LNER Class V2, was a class of British 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway.
-
A.
Ranger class
The Ranger class was a group of early U.S. Navy aircraft carriers that helped pioneer carrier design and operations before World War II.
-
B.
Bagley class
The Bagley class was a group of U.S. Navy destroyers built in the late 1930s that saw extensive service during World War II, particularly in the Pacific Theater.
-
C.
Scarlet Lady-class
The Scarlet Lady-class is a series of modern cruise ships operated by Virgin Voyages, known for their adults-only focus, contemporary design, and unconventional approach to cruising.
-
D.
Renown class
The Renown class was a pair of British Royal Navy battlecruisers built during World War I, known for their high speed, heavy armament, and extensive modernizations between the wars.
-
E.
Valour-class frigates
Valour-class frigates are a class of modern multi-role warships operated by the South African Navy, designed for anti-air, anti-surface, and anti-submarine warfare.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | steam locomotive class ⓘ |
| alsoKnownAs | Green Arrow class NERFINISHED ⓘ |
| brNumberOfGreenArrow | 60800 ⓘ |
| buildEndYear | 1944 ⓘ |
| buildStartYear | 1936 ⓘ |
| configuration | tender locomotive ⓘ |
| countryOfOperation | United Kingdom ⓘ |
| cylinderArrangement | three-cylinder ⓘ |
| cylinderCount | 3 ⓘ |
| designedFor |
express freight
ⓘ
fast fitted freight ⓘ secondary passenger services ⓘ |
| designer | Sir Nigel Gresley NERFINISHED ⓘ |
| designerNationality | British ⓘ |
| designerPosition | Chief Mechanical Engineer of the LNER ⓘ |
| enteredBRServiceYear | 1948 ⓘ |
| fuelType | coal ⓘ |
| gauge | standard gauge ⓘ |
| heritageStatusOfGreenArrow | National Collection NERFINISHED ⓘ |
| historicalEra |
early British Railways dieselisation period
ⓘ
pre-nationalisation British railways ⓘ |
| museumDisplayOfGreenArrow | National Railway Museum NERFINISHED ⓘ |
| notableLocomotive | 4771 Green Arrow NERFINISHED ⓘ |
| notableRouteUse | East Coast Main Line GENERATED ⓘ |
| numberBuilt | 184 ⓘ |
| officialName | LNER Class V2 NERFINISHED ⓘ |
| operatedBy | London and North Eastern Railway NERFINISHED ⓘ |
| operator | British Railways NERFINISHED ⓘ |
| powerType | steam ⓘ |
| preservedLocomotive |
LNER Class V2 4771 Green Arrow
NERFINISHED
ⓘ
LNER Class V2 60800 Green Arrow NERFINISHED ⓘ |
| primaryUse |
freight services
ⓘ
mixed-traffic duties ⓘ passenger services ⓘ |
| railwayAdministration | Big Four railway company NERFINISHED ⓘ |
| railwayCompany | London and North Eastern Railway NERFINISHED ⓘ |
| railwayRegionUnderBR | Eastern Region NERFINISHED ⓘ |
| steamLocomotiveType | mixed-traffic 2-6-2 tender locomotive ⓘ |
| successorOperator | British Railways Eastern Region NERFINISHED ⓘ |
| trackGauge | 1435 mm ⓘ |
| UICClassification | 1′C1′ h3 ⓘ |
| valveGear | Walschaerts NERFINISHED ⓘ |
| wheelArrangement | 2-6-2 ⓘ |
| withdrawalEndYear | 1966 ⓘ |
| withdrawalStartYear | 1962 ⓘ |
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: Green Arrow class Description of subject: The Green Arrow class, officially known as the LNER Class V2, was a class of British 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.