NCB (Coal Products) Ltd
E714273
NCB (Coal Products) Ltd was a commercial subsidiary of the UK’s National Coal Board responsible for marketing and distributing coal and related fuel products.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NCB (Coal Products) Ltd canonical | 1 |
| NCB Coal Products | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8137467 — 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: NCB (Coal Products) Ltd Context triple: [National Coal Board, hasSubsidiary, NCB (Coal Products) Ltd]
-
A.
Northern Coalfields Limited
Northern Coalfields Limited is an Indian state-owned coal mining company and a major subsidiary of Coal India Limited, primarily operating large open-cast mines in the Singrauli coalfields.
-
B.
Central Coalfields Limited
Central Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, responsible for coal production and operations in parts of Jharkhand.
-
C.
Eastern Coalfields Limited
Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
-
D.
Bharat Coking Coal Limited
Bharat Coking Coal Limited is an Indian government-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in producing coking coal from mines in the Jharia and Raniganj coalfields.
-
E.
Assam Oil Company
Assam Oil Company was a historic petroleum exploration and production company in India, known for pioneering oil operations in the Assam region during the early 20th century.
- 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: NCB (Coal Products) Ltd Target entity description: NCB (Coal Products) Ltd was a commercial subsidiary of the UK’s National Coal Board responsible for marketing and distributing coal and related fuel products.
-
A.
Northern Coalfields Limited
Northern Coalfields Limited is an Indian state-owned coal mining company and a major subsidiary of Coal India Limited, primarily operating large open-cast mines in the Singrauli coalfields.
-
B.
Central Coalfields Limited
Central Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, responsible for coal production and operations in parts of Jharkhand.
-
C.
Eastern Coalfields Limited
Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
-
D.
Bharat Coking Coal Limited
Bharat Coking Coal Limited is an Indian government-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in producing coking coal from mines in the Jharia and Raniganj coalfields.
-
E.
Assam Oil Company
Assam Oil Company was a historic petroleum exploration and production company in India, known for pioneering oil operations in the Assam region during the early 20th century.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
coal industry company
ⓘ
commercial subsidiary ⓘ |
| associatedWith |
National Coal Board commercial activities
ⓘ
UK coal industry ⓘ |
| businessFunction |
distribution of coal
ⓘ
marketing of coal ⓘ sale of related fuel products ⓘ |
| country | United Kingdom ⓘ |
| distributionChannel |
coal merchants
ⓘ
direct supply to customers ⓘ retail outlets ⓘ |
| hasAbbreviation |
NCB Coal Products
ⓘ
linked to:
NCB (Coal Products) Ltd
|
| industry |
coal
ⓘ
energy ⓘ solid fuel distribution ⓘ |
| operatedIn |
domestic fuel market
ⓘ
industrial fuel market ⓘ |
| ownedBy | National Coal Board ⓘ |
| parentOrganization | National Coal Board ⓘ |
| partOf |
National Coal Board group of companies
ⓘ
linked to:
National Coal Board
|
| product |
coal
ⓘ
coke ⓘ domestic heating fuel ⓘ industrial fuel ⓘ smokeless fuel ⓘ |
| regulatoryContext | UK nationalised coal industry ⓘ |
| sector |
energy supply
ⓘ
fuel retail ⓘ |
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: NCB (Coal Products) Ltd Description of subject: NCB (Coal Products) Ltd was a commercial subsidiary of the UK’s National Coal Board responsible for marketing and distributing coal and related fuel products.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: NCB (Coal Products) Ltd