River Calder (Yorkshire) catchment
E699181
The River Calder (Yorkshire) catchment is the drainage basin in West Yorkshire that collects water from the eastern slopes of the Pennines and feeds it into the River Calder and its tributaries.
All labels observed (2)
| Label | Occurrences |
|---|---|
| River Calder (Yorkshire) catchment canonical | 1 |
| River Calder (adjacent and partly interacting catchment) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7829574 — 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: River Calder (Yorkshire) catchment Context triple: [Pennine watershed, relatedTo, River Calder (Yorkshire) catchment]
-
A.
River Derwent (Cumbria) catchment
The River Derwent (Cumbria) catchment is the drainage basin in northwest England that collects water from the surrounding uplands, including parts of the Pennines and Lake District, and channels it through the River Derwent system.
-
B.
Derwent catchment (Yorkshire)
Derwent catchment (Yorkshire) is the river basin in North Yorkshire that drains the surrounding landscape into the River Derwent, encompassing its tributaries, wetlands, and associated ecosystems.
-
C.
South Calder Water
South Calder Water is a river in North Lanarkshire, Scotland, that flows through former industrial and mining areas before joining the River Clyde.
-
D.
River Aire catchment
The River Aire catchment is the drainage basin in northern England that collects water from the Pennine hills and surrounding areas into the River Aire and its tributaries.
-
E.
Wyre catchment
The Wyre catchment is the river basin in Lancashire, England, that drains the River Wyre and its tributaries into the Wyre Estuary and ultimately the Irish Sea.
- 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: River Calder (Yorkshire) catchment Target entity description: The River Calder (Yorkshire) catchment is the drainage basin in West Yorkshire that collects water from the eastern slopes of the Pennines and feeds it into the River Calder and its tributaries.
-
A.
River Derwent (Cumbria) catchment
The River Derwent (Cumbria) catchment is the drainage basin in northwest England that collects water from the surrounding uplands, including parts of the Pennines and Lake District, and channels it through the River Derwent system.
-
B.
Derwent catchment (Yorkshire)
Derwent catchment (Yorkshire) is the river basin in North Yorkshire that drains the surrounding landscape into the River Derwent, encompassing its tributaries, wetlands, and associated ecosystems.
-
C.
South Calder Water
South Calder Water is a river in North Lanarkshire, Scotland, that flows through former industrial and mining areas before joining the River Clyde.
-
D.
River Aire catchment
The River Aire catchment is the drainage basin in northern England that collects water from the Pennine hills and surrounding areas into the River Aire and its tributaries.
-
E.
Wyre catchment
The Wyre catchment is the river basin in Lancashire, England, that drains the River Wyre and its tributaries into the Wyre Estuary and ultimately the Irish Sea.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf | river catchment ⓘ |
| collectsRunoffFrom | eastern slopes of the Pennines ⓘ |
| containsInfrastructure |
M62 motorway corridor
ⓘ
linked to:
M62 motorway
TransPennine rail routes ⓘ |
| containsLandscapeFeature |
Calder Valley
ⓘ
Pennine moorland ⓘ South Pennines ⓘ |
| containsLandUse |
agricultural land
ⓘ
industrial areas ⓘ upland grazing ⓘ urban areas ⓘ woodland ⓘ |
| containsSettlement | Upper Calder Valley settlements ⓘ |
| containsTown |
Brighouse
ⓘ
Castleford (downstream confluence area) ⓘ
linked to:
Castleford
Dewsbury ⓘ Elland ⓘ Halifax ⓘ Hebden Bridge ⓘ Huddersfield ⓘ Mirfield ⓘ Normanton ⓘ Ossett ⓘ Sowerby Bridge ⓘ Todmorden ⓘ Wakefield ⓘ |
| containsWatercourse |
Aire and Calder Navigation (downstream connection)
ⓘ
linked to:
Aire and Calder Navigation
Calder and Hebble Navigation ⓘ River Calder (Yorkshire) ⓘ
linked to:
River Calder (West Yorkshire)
River Colne (West Yorkshire) ⓘ
linked to:
River Colne at Huddersfield
River Dearne (partly, via confluence system with Don/Aire–Calder navigation) ⓘ
linked to:
River Dearne
River Hebble ⓘ
linked to:
Hebble Brook
River Holme ⓘ River Ryburn ⓘ River Spen ⓘ |
| country |
England
ⓘ
United Kingdom ⓘ |
| drainsInto |
River Calder (Yorkshire)
ⓘ
linked to:
River Calder (West Yorkshire)
|
| hasConfluence | River Aire at Castleford (via Aire and Calder Navigation) ⓘ |
| hasEnvironmentalIssue |
historic industrial contamination
ⓘ
sewage discharges ⓘ urban diffuse pollution ⓘ |
| locatedIn | West Yorkshire ⓘ |
| managedBy |
Environment Agency
ⓘ
linked to:
Environment Agency (England)
|
| partOf |
Humber river basin
ⓘ
linked to:
Humber river system
Ouse river system ⓘ River Aire catchment ⓘ River Calder (Yorkshire) basin ⓘ |
| subjectTo |
fluvial flooding
ⓘ
surface water flooding ⓘ |
| usedFor |
hydropower (small-scale schemes)
ⓘ
navigation (via canalised sections) ⓘ public water supply (partly via reservoirs in headwaters) ⓘ recreation ⓘ |
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: River Calder (Yorkshire) catchment Description of subject: The River Calder (Yorkshire) catchment is the drainage basin in West Yorkshire that collects water from the eastern slopes of the Pennines and feeds it into the River Calder and its tributaries.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: River Calder (Yorkshire) catchment