North Koel River
E524612
The North Koel River is a tributary of the Son River that flows through the Indian states of Jharkhand and Bihar, draining parts of the Chota Nagpur Plateau.
All labels observed (1)
| Label | Occurrences |
|---|---|
| North Koel River canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T3528585 — 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: North Koel River Context triple: [Son River, hasTributary, North Koel River]
-
A.
Subarnarekha River
The Subarnarekha River is a significant river in eastern India that flows through the states of Jharkhand, West Bengal, and Odisha before emptying into the Bay of Bengal.
-
B.
Koel River
The Koel River is a significant river in eastern India that flows through the state of Jharkhand and forms part of the larger Damodar and Subarnarekha river systems.
-
C.
Damodar River
The Damodar River is a major river in eastern India, historically known for its devastating floods and extensive coal-rich basin in the states of Jharkhand and West Bengal.
-
D.
Bindal River
Bindal River is a small seasonal river flowing through Dehradun in Uttarakhand, India, known for its role in local drainage and frequent urban flooding concerns.
-
E.
Balan River
The Balan River is a regional river in the Indian state of Bihar that flows through areas including Samastipur district and supports local agriculture and settlements.
- 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: North Koel River Target entity description: The North Koel River is a tributary of the Son River that flows through the Indian states of Jharkhand and Bihar, draining parts of the Chota Nagpur Plateau.
-
A.
Subarnarekha River
The Subarnarekha River is a significant river in eastern India that flows through the states of Jharkhand, West Bengal, and Odisha before emptying into the Bay of Bengal.
-
B.
Koel River
The Koel River is a significant river in eastern India that flows through the state of Jharkhand and forms part of the larger Damodar and Subarnarekha river systems.
-
C.
Damodar River
The Damodar River is a major river in eastern India, historically known for its devastating floods and extensive coal-rich basin in the states of Jharkhand and West Bengal.
-
D.
Bindal River
Bindal River is a small seasonal river flowing through Dehradun in Uttarakhand, India, known for its role in local drainage and frequent urban flooding concerns.
-
E.
Balan River
The Balan River is a regional river in the Indian state of Bihar that flows through areas including Samastipur district and supports local agriculture and settlements.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | India ⓘ |
| belongsTo | Son River system NERFINISHED ⓘ |
| category |
Rivers of Bihar
ⓘ
Rivers of Jharkhand ⓘ Tributaries of the Son River ⓘ |
| confluenceNear | Haidarnagar area NERFINISHED ⓘ |
| confluenceWithSonNear | Dehri-on-Sone region NERFINISHED ⓘ |
| country | India ⓘ |
| crossesPoliticalBoundary | Jharkhand–Bihar border NERFINISHED ⓘ |
| damProjectLocation | Kutku, Jharkhand NERFINISHED ⓘ |
| drainagePattern | dendritic ⓘ |
| drains | Chota Nagpur Plateau NERFINISHED ⓘ |
| ecosystemType | tropical deciduous forest region ⓘ |
| flowsInDistrict |
Aurangabad district, Bihar
NERFINISHED
ⓘ
Garhwa district NERFINISHED ⓘ Gaya district NERFINISHED ⓘ Latehar district NERFINISHED ⓘ Palamu district NERFINISHED ⓘ |
| flowsNear | Daltonganj NERFINISHED ⓘ |
| flowsThrough |
Bihar
NERFINISHED
ⓘ
Jharkhand NERFINISHED ⓘ |
| geologicalSetting | Precambrian rocks of Chota Nagpur Plateau ⓘ |
| hasDamProject | North Koel Project NERFINISHED ⓘ |
| hasFloodRisk | downstream areas in Bihar ⓘ |
| hasTributary |
Amanat River
NERFINISHED
ⓘ
Auranga River NERFINISHED ⓘ Burha River NERFINISHED ⓘ |
| hasValley | North Koel River valley NERFINISHED ⓘ |
| influences |
groundwater recharge in adjoining areas
ⓘ
local agriculture patterns in Palamu region ⓘ |
| locatedIn | eastern India NERFINISHED ⓘ |
| mouth | Son River NERFINISHED ⓘ |
| mouthCountry | India NERFINISHED ⓘ |
| mouthState | Bihar NERFINISHED ⓘ |
| partOf | Ganges River basin NERFINISHED ⓘ |
| passesThrough | Palamu Tiger Reserve NERFINISHED ⓘ |
| region | Chota Nagpur Division NERFINISHED ⓘ |
| sourceRegion | Chota Nagpur Plateau NERFINISHED ⓘ |
| sourceState | Jharkhand NERFINISHED ⓘ |
| stateHydrologicalRegion |
Bihar river system
ⓘ
Jharkhand river system ⓘ |
| terrain | plateau and forested uplands ⓘ |
| tributaryOf | Son River NERFINISHED ⓘ |
| usedFor |
fishing
ⓘ
hydropower potential ⓘ irrigation ⓘ |
| waterUse |
agriculture
ⓘ
domestic use in nearby settlements ⓘ |
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: North Koel River Description of subject: The North Koel River is a tributary of the Son River that flows through the Indian states of Jharkhand and Bihar, draining parts of the Chota Nagpur Plateau.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Son River