Ma River basin
E834405
The Ma River basin is the catchment area in Vietnam and Laos that collects and channels water from surrounding landscapes into the Ma River system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ma River basin canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9984442 — 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: Ma River basin Context triple: [Ma River, drainageBasin, Ma River basin]
-
A.
Po River basin
The Po River basin is the largest river basin in Italy, encompassing a broad plain in northern Italy where the Po River and its tributaries collect and drain water from the surrounding Alpine and Apennine regions into the Adriatic Sea.
-
B.
Ma River
The Ma River is a major river in Southeast Asia that flows through north-central Vietnam and Laos before emptying into the Gulf of Tonkin.
-
C.
Po river basin
The Po river basin is the largest drainage basin in Italy, encompassing a vast network of rivers and tributaries that flow across northern Italy into the Adriatic Sea.
-
D.
Arno river basin
The Arno river basin is the drainage area in central Italy surrounding the Arno River, encompassing parts of Tuscany and several provinces including Arezzo.
-
E.
Po River
The Po River is the longest river in Italy, flowing eastward across northern Italy’s plains to the Adriatic Sea and serving as a major geographic and economic artery for the region.
- 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: Ma River basin Target entity description: The Ma River basin is the catchment area in Vietnam and Laos that collects and channels water from surrounding landscapes into the Ma River system.
-
A.
Po River basin
The Po River basin is the largest river basin in Italy, encompassing a broad plain in northern Italy where the Po River and its tributaries collect and drain water from the surrounding Alpine and Apennine regions into the Adriatic Sea.
-
B.
Ma River
The Ma River is a major river in Southeast Asia that flows through north-central Vietnam and Laos before emptying into the Gulf of Tonkin.
-
C.
Po river basin
The Po river basin is the largest drainage basin in Italy, encompassing a vast network of rivers and tributaries that flow across northern Italy into the Adriatic Sea.
-
D.
Arno river basin
The Arno river basin is the drainage area in central Italy surrounding the Arno River, encompassing parts of Tuscany and several provinces including Arezzo.
-
E.
Po River
The Po River is the longest river in Italy, flowing eastward across northern Italy’s plains to the Adriatic Sea and serving as a major geographic and economic artery for the region.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
river basin ⓘ |
| borderCrossing | transboundary basin between Laos and Vietnam ⓘ |
| climate | tropical monsoon climate ⓘ |
| contains |
Buoi River
NERFINISHED
ⓘ
Cau Chay River NERFINISHED ⓘ Chu River NERFINISHED ⓘ Luong River NERFINISHED ⓘ Ma River NERFINISHED ⓘ Nam Non River NERFINISHED ⓘ Nam Xam River NERFINISHED ⓘ |
| country |
Laos
NERFINISHED
ⓘ
Viet Nam ⓘ
surface form:
Vietnam
|
| drainagePattern | dendritic drainage pattern ⓘ |
| drainsInto | Ma River NERFINISHED ⓘ |
| emptiesInto | Gulf of Tonkin NERFINISHED ⓘ |
| environmentalIssue |
deforestation in upstream areas
ⓘ
sedimentation ⓘ soil erosion ⓘ water pollution in downstream sections ⓘ |
| flowsThroughProvince |
Hoa Binh Province
NERFINISHED
ⓘ
Houaphanh Province NERFINISHED ⓘ Ninh Binh Province NERFINISHED ⓘ Son La Province NERFINISHED ⓘ Thanh Hoa Province NERFINISHED ⓘ Xiengkhouang Province NERFINISHED ⓘ |
| hasEconomicActivity |
aquaculture
ⓘ
rice cultivation ⓘ sand and gravel mining ⓘ timber extraction in uplands ⓘ |
| hasUse |
domestic water supply
ⓘ
fisheries ⓘ hydropower ⓘ irrigation ⓘ navigation ⓘ |
| locatedIn |
Laos
NERFINISHED
ⓘ
Viet Nam ⓘ
surface form:
Vietnam
|
| majorCityInBasin |
Sam Neua
NERFINISHED
ⓘ
Thanh Hoa NERFINISHED ⓘ |
| partOf |
Gulf of Tonkin watershed
NERFINISHED
ⓘ
Ma River system NERFINISHED ⓘ |
| region |
North Central Coast of Vietnam
NERFINISHED
ⓘ
Northern Vietnam NERFINISHED ⓘ eastern Laos NERFINISHED ⓘ |
| subjectTo |
droughts
ⓘ
seasonal flooding ⓘ |
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: Ma River basin Description of subject: The Ma River basin is the catchment area in Vietnam and Laos that collects and channels water from surrounding landscapes into the Ma River system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.