Surma River basin
E811306
The Surma River basin is a river drainage region in northeastern India and Bangladesh, known for its heavy monsoon rainfall, fertile floodplains, and role as a major tributary system of the Meghna River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Barak–Surma–Kushiyara basin | 1 |
| Surma River basin canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9618933 — 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: Surma River basin Context triple: [Shillong Plateau, drainageTo, Surma River basin]
-
A.
Rega River basin
The Rega River basin is the drainage area of the Rega River in northwestern Poland, encompassing the river’s tributaries, surrounding landscapes, and towns such as Schievelbein (Świdwin).
-
B.
Lempa River basin
The Lempa River basin is a major Central American watershed, primarily in El Salvador, that drains a large region into the Pacific Ocean and supports significant agriculture, hydropower, and urban populations.
-
C.
Pakke River basin
The Pakke River basin is the forested river catchment in Arunachal Pradesh, India, that supports rich biodiversity and forms the ecological setting for the Pakke Tiger Reserve.
-
D.
Marga Marga River basin
The Marga Marga River basin is a hydrological and geographical region in central Chile that encompasses the drainage area of the Marga Marga River, including the city of Quilpué and surrounding urban and rural zones.
-
E.
Parthe river basin
The Parthe river basin is the drainage area of the Parthe River in Saxony, Germany, encompassing towns such as Naunhof and contributing to the region’s hydrology and landscape.
- 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: Surma River basin Target entity description: The Surma River basin is a river drainage region in northeastern India and Bangladesh, known for its heavy monsoon rainfall, fertile floodplains, and role as a major tributary system of the Meghna River.
-
A.
Rega River basin
The Rega River basin is the drainage area of the Rega River in northwestern Poland, encompassing the river’s tributaries, surrounding landscapes, and towns such as Schievelbein (Świdwin).
-
B.
Lempa River basin
The Lempa River basin is a major Central American watershed, primarily in El Salvador, that drains a large region into the Pacific Ocean and supports significant agriculture, hydropower, and urban populations.
-
C.
Pakke River basin
The Pakke River basin is the forested river catchment in Arunachal Pradesh, India, that supports rich biodiversity and forms the ecological setting for the Pakke Tiger Reserve.
-
D.
Marga Marga River basin
The Marga Marga River basin is a hydrological and geographical region in central Chile that encompasses the drainage area of the Marga Marga River, including the city of Quilpué and surrounding urban and rural zones.
-
E.
Parthe river basin
The Parthe river basin is the drainage area of the Parthe River in Saxony, Germany, encompassing towns such as Naunhof and contributing to the region’s hydrology and landscape.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
river basin ⓘ |
| borderRegionOf |
Bangladesh
ⓘ
India ⓘ |
| climate |
humid subtropical climate
ⓘ
monsoon climate ⓘ |
| containsCity |
Habiganj
ⓘ
Moulvibazar ⓘ
linked to:
Moulvibazar District
Silchar ⓘ Sunamganj ⓘ Sylhet ⓘ |
| containsLandform |
alluvial plains
ⓘ
floodplains ⓘ haor wetlands ⓘ |
| country |
Bangladesh
ⓘ
India ⓘ |
| drainsInto |
Meghna River
ⓘ
linked to:
Meghna
|
| hasCharacteristic |
fertile floodplains
ⓘ
frequent flooding ⓘ heavy monsoon rainfall ⓘ high sediment load ⓘ intense riverbank erosion ⓘ |
| hasMajorRiver |
Barak River
ⓘ
Jadukata River ⓘ Khowai River ⓘ Kushiyara River ⓘ Manu River ⓘ Piyain River ⓘ Surma River ⓘ |
| hydrologicalRole | major tributary system of the Meghna River ⓘ |
| locatedIn |
Bangladesh
ⓘ
Northeastern India ⓘ
linked to:
Northeast India
|
| locatedInAdministrativeRegion |
Assam
ⓘ
Chattogram Division ⓘ
linked to:
Chittagong Division
Meghalaya ⓘ Mizoram ⓘ Mymensingh Division ⓘ Sylhet Division ⓘ Tripura ⓘ |
| majorCrop |
jute
ⓘ
rice ⓘ tea ⓘ vegetables ⓘ |
| partOf |
Ganges–Brahmaputra–Meghna river system
ⓘ
linked to:
Ganges-Brahmaputra-Meghna river system
Meghna River basin ⓘ
linked to:
Meghna
|
| precipitationPattern | concentrated in southwest monsoon season ⓘ |
| seasonalVariation |
high wet-season flows
ⓘ
low dry-season flows ⓘ |
| supportsEconomicActivity |
agriculture
ⓘ
fisheries ⓘ river transport ⓘ |
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: Surma River basin Description of subject: The Surma River basin is a river drainage region in northeastern India and Bangladesh, known for its heavy monsoon rainfall, fertile floodplains, and role as a major tributary system of the Meghna River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Surma River basin