Grijalva River basin
E1009212
The Grijalva River basin is a major watershed in southeastern Mexico that drains the Grijalva River and its tributaries through parts of Chiapas and Tabasco into the Gulf of Mexico.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Grijalva River basin canonical | 2 |
| Grijalva–Usumacinta River basin | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12888643 — 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: Grijalva River basin Context triple: [Comalcalco, locatedInGeographicFeature, Grijalva River basin]
-
A.
Guadalupe River Basin
The Guadalupe River Basin is the watershed region in south-central Texas that drains the Guadalupe River and its tributaries, supporting diverse ecosystems and providing water resources for surrounding communities.
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B.
San Juan River basin
The San Juan River basin is a Central American watershed that drains Lake Nicaragua and surrounding regions through the San Juan River toward the Caribbean Sea.
-
C.
San Pedro River basin
The San Pedro River basin is a watershed in southern Chile that collects runoff from Andean volcanoes and surrounding mountains before draining toward the country's lake and river systems.
-
D.
San Miguel River basin
The San Miguel River basin is a watershed in southwestern Colorado that drains the San Miguel River and its tributaries through rugged mountain terrain before joining the Dolores River.
-
E.
Culiacán River basin
The Culiacán River basin is a hydrological region in the state of Sinaloa, Mexico, encompassing the drainage area that feeds the Culiacán River and supporting extensive agriculture and local ecosystems.
- 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: Grijalva River basin Target entity description: The Grijalva River basin is a major watershed in southeastern Mexico that drains the Grijalva River and its tributaries through parts of Chiapas and Tabasco into the Gulf of Mexico.
-
A.
Guadalupe River Basin
The Guadalupe River Basin is the watershed region in south-central Texas that drains the Guadalupe River and its tributaries, supporting diverse ecosystems and providing water resources for surrounding communities.
-
B.
San Juan River basin
The San Juan River basin is a Central American watershed that drains Lake Nicaragua and surrounding regions through the San Juan River toward the Caribbean Sea.
-
C.
San Pedro River basin
The San Pedro River basin is a watershed in southern Chile that collects runoff from Andean volcanoes and surrounding mountains before draining toward the country's lake and river systems.
-
D.
San Miguel River basin
The San Miguel River basin is a watershed in southwestern Colorado that drains the San Miguel River and its tributaries through rugged mountain terrain before joining the Dolores River.
-
E.
Culiacán River basin
The Culiacán River basin is a hydrological region in the state of Sinaloa, Mexico, encompassing the drainage area that feeds the Culiacán River and supporting extensive agriculture and local ecosystems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
river basin
ⓘ
watershed ⓘ |
| basinOf |
Chilapa River
NERFINISHED
ⓘ
Grijalva River NERFINISHED ⓘ La Venta River NERFINISHED ⓘ Pichucalco River NERFINISHED ⓘ Shumulhá River NERFINISHED ⓘ Sumidero Canyon reach of Grijalva River NERFINISHED ⓘ Tacotalpa River NERFINISHED ⓘ Teapa River NERFINISHED ⓘ Tulijá River NERFINISHED ⓘ |
| contains |
Angostura Dam reservoir
NERFINISHED
ⓘ
Chicoasén Dam reservoir NERFINISHED ⓘ Malpaso Dam reservoir NERFINISHED ⓘ Peñitas Dam reservoir NERFINISHED ⓘ |
| country | Mexico ⓘ |
| drainageBasinOf | Pacific slope–Gulf of Mexico continental divide (eastern side) ⓘ |
| drains | Grijalva River NERFINISHED ⓘ |
| drainsInto | Gulf of Mexico NERFINISHED ⓘ |
| flowsThrough |
Central Depression of Chiapas
NERFINISHED
ⓘ
Tabasco coastal plain NERFINISHED ⓘ |
| hasAverageAnnualRainfall | high ⓘ |
| hasCityOnBasin |
Comitán de Domínguez
NERFINISHED
ⓘ
Cárdenas, Tabasco NERFINISHED ⓘ Tuxtla Gutiérrez NERFINISHED ⓘ Villahermosa NERFINISHED ⓘ |
| hasClimate | tropical humid climate ⓘ |
| hasEconomicActivity |
agriculture
ⓘ
cattle ranching ⓘ fishing ⓘ |
| hasEcosystem |
riparian forest
ⓘ
tropical rainforest ⓘ wetlands ⓘ |
| locatedIn | southeastern Mexico ⓘ |
| locatedInAdministrativeTerritory |
State of Chiapas
NERFINISHED
ⓘ
State of Tabasco NERFINISHED ⓘ |
| majorUse |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ municipal water supply ⓘ |
| managedBy | Mexican National Water Commission NERFINISHED ⓘ |
| mouthLocatedIn | Gulf of Mexico NERFINISHED ⓘ |
| partOf | Gulf of Mexico drainage basin NERFINISHED ⓘ |
| threat |
deforestation
ⓘ
flooding ⓘ soil erosion ⓘ water pollution ⓘ |
| tributaryRegionOf | Grijalva–Usumacinta hydrological region NERFINISHED ⓘ |
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: Grijalva River basin Description of subject: The Grijalva River basin is a major watershed in southeastern Mexico that drains the Grijalva River and its tributaries through parts of Chiapas and Tabasco into the Gulf of Mexico.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Grijalva–Usumacinta River basin