Enugu coal fields
E1013487
Enugu coal fields are a major coal mining region in southeastern Nigeria that historically powered the country’s early industrialization and gave rise to the city of Enugu.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Enugu coal fields canonical | 1 |
| Nigerian coal industry | 1 |
| Ogbete mine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12963226 — 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: Enugu coal fields Context triple: [Coal City, historicalBasis, Enugu coal fields]
-
A.
Witbank coalfield
The Witbank coalfield is one of South Africa’s most important and productive coal mining regions, supplying a large share of the country’s thermal coal for power generation and export.
-
B.
Wande Coal
Wande Coal is a Nigerian singer and songwriter known for his influential role in modern Afrobeats and his smooth, soulful vocal style.
-
C.
Margherita coalfields
Margherita coalfields are a significant coal mining region in Assam, India, known for their contribution to the state's coal production and local economy.
-
D.
Nzakara
Nzakara is a Central African language variety closely related to Zande, spoken primarily in parts of the Central African Republic and neighboring regions.
-
E.
Arigna coal mining area
The Arigna coal mining area is a historic coalfield in County Roscommon, Ireland, known for its long tradition of coal extraction and its preserved mining heritage center.
- 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: Enugu coal fields Target entity description: Enugu coal fields are a major coal mining region in southeastern Nigeria that historically powered the country’s early industrialization and gave rise to the city of Enugu.
-
A.
Witbank coalfield
The Witbank coalfield is one of South Africa’s most important and productive coal mining regions, supplying a large share of the country’s thermal coal for power generation and export.
-
B.
Wande Coal
Wande Coal is a Nigerian singer and songwriter known for his influential role in modern Afrobeats and his smooth, soulful vocal style.
-
C.
Margherita coalfields
Margherita coalfields are a significant coal mining region in Assam, India, known for their contribution to the state's coal production and local economy.
-
D.
Nzakara
Nzakara is a Central African language variety closely related to Zande, spoken primarily in parts of the Central African Republic and neighboring regions.
-
E.
Arigna coal mining area
The Arigna coal mining area is a historic coalfield in County Roscommon, Ireland, known for its long tradition of coal extraction and its preserved mining heritage center.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
coal field
ⓘ
mining region ⓘ |
| administrativeCenter | Enugu ⓘ |
| associatedWith |
Iva Valley mine
ⓘ
Ogbete mine ⓘ
linked to:
Enugu coal fields
Okpara mine ⓘ Onyeama mine ⓘ |
| coalType | bituminous coal ⓘ |
| contributedTo | formation of working-class movements in Nigeria ⓘ |
| country | Nigeria ⓘ |
| currentStatus | largely inactive ⓘ |
| declineBegan | late 20th century ⓘ |
| developedDuring | British colonial period ⓘ |
| discoveredBy | British colonial geologists ⓘ |
| discoveredIn | 1909 ⓘ |
| economicImpact |
provided employment for thousands of workers
ⓘ
stimulated urban growth in Enugu ⓘ |
| energySectorRole | historically key domestic energy source for Nigeria ⓘ |
| environmentalImpact |
abandoned mine sites
ⓘ
land degradation in mining areas ⓘ |
| gaveRiseTo |
city of Enugu
ⓘ
linked to:
Enugu
|
| geologicalSetting | Anambra Basin ⓘ |
| historicalRole |
contributed to electricity generation in early Nigeria
ⓘ
powered early industrialization in Nigeria ⓘ supported railway operations in colonial Nigeria ⓘ |
| influencedCreationOf | Enugu as a coal mining town ⓘ |
| locatedIn |
Enugu State
ⓘ
southeastern Nigeria ⓘ |
| mainCity | Enugu ⓘ |
| nationalization | took place after Nigerian independence ⓘ |
| nearbyRegion | Udi Hills ⓘ |
| notableEvent | Iva Valley miners strike of 1949 ⓘ |
| operatedBy | Nigerian Coal Corporation ⓘ |
| ownershipHistory |
British colonial government
ⓘ
Federal Government of Nigeria ⓘ
linked to:
Government of Nigeria
|
| partOf |
Nigerian coal industry
ⓘ
linked to:
Enugu coal fields
|
| peakProductionPeriod | mid-20th century ⓘ |
| politicalSignificance | site of major labor and nationalist agitation ⓘ |
| reasonForDecline |
competition from petroleum
ⓘ
underinvestment in mining infrastructure ⓘ |
| resourceExtracted | coal ⓘ |
| revitalizationDiscussion | subject of proposals for coal-to-power projects ⓘ |
| servedMarket |
domestic industrial consumers
ⓘ
railway corporations in Nigeria ⓘ |
| stratigraphicUnit | Mamu Formation ⓘ |
| transportInfrastructure | linked to Eastern Line railway ⓘ |
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: Enugu coal fields Description of subject: Enugu coal fields are a major coal mining region in southeastern Nigeria that historically powered the country’s early industrialization and gave rise to the city of Enugu.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Enugu coal fields
linked to: Enugu coal fields