Mesoregion of Lower Amazon
E467152
The Mesoregion of Lower Amazon is an administrative and geographic region in the western part of Brazil’s Pará state, centered around the city of Santarém and encompassing areas along the lower course of the Amazon River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mesoregion of Lower Amazon canonical | 1 |
| lower Amazon valley | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4742441 — 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: Mesoregion of Lower Amazon Context triple: [Santarém, partOf, Mesoregion of Lower Amazon]
-
A.
Northwestern Amazonia
Northwestern Amazonia is a culturally and ecologically diverse region of the upper Amazon Basin, spanning parts of countries like Colombia, Ecuador, Peru, and Brazil and known for its dense rainforests and numerous Indigenous languages and peoples.
-
B.
Amazon–Orinoco watershed region
The Amazon–Orinoco watershed region is a vast, ecologically rich area in northern South America where the drainage basins of the Amazon and Orinoco rivers converge and interact.
-
C.
Colombian Amazon region
The Colombian Amazon region is a vast, biodiverse rainforest area in southeastern Colombia that forms part of the greater Amazon Basin and is home to numerous Indigenous communities and protected natural reserves.
-
D.
Bolivian Amazon
The Bolivian Amazon is the northern portion of Bolivia covered by tropical rainforest, forming part of the greater Amazon Basin and known for its rich biodiversity and indigenous cultures.
-
E.
Peruvian Amazon
The Peruvian Amazon is the vast northeastern portion of Peru covered by tropical rainforest, renowned for its extraordinary biodiversity, indigenous cultures, and river systems feeding the Amazon River.
- 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: Mesoregion of Lower Amazon Target entity description: The Mesoregion of Lower Amazon is an administrative and geographic region in the western part of Brazil’s Pará state, centered around the city of Santarém and encompassing areas along the lower course of the Amazon River.
-
A.
Northwestern Amazonia
Northwestern Amazonia is a culturally and ecologically diverse region of the upper Amazon Basin, spanning parts of countries like Colombia, Ecuador, Peru, and Brazil and known for its dense rainforests and numerous Indigenous languages and peoples.
-
B.
Amazon–Orinoco watershed region
The Amazon–Orinoco watershed region is a vast, ecologically rich area in northern South America where the drainage basins of the Amazon and Orinoco rivers converge and interact.
-
C.
Colombian Amazon region
The Colombian Amazon region is a vast, biodiverse rainforest area in southeastern Colombia that forms part of the greater Amazon Basin and is home to numerous Indigenous communities and protected natural reserves.
-
D.
Bolivian Amazon
The Bolivian Amazon is the northern portion of Bolivia covered by tropical rainforest, forming part of the greater Amazon Basin and known for its rich biodiversity and indigenous cultures.
-
E.
Peruvian Amazon
The Peruvian Amazon is the vast northeastern portion of Peru covered by tropical rainforest, renowned for its extraordinary biodiversity, indigenous cultures, and river systems feeding the Amazon River.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
administrative region
ⓘ
geographic region ⓘ mesoregion ⓘ |
| abbreviation | IBGE: Mesorregião do Baixo Amazonas ⓘ |
| borderedBy |
international borders with Guyana Shield area (via Pará state limits)
ⓘ
other mesoregions of Pará ⓘ |
| climate | equatorial ⓘ |
| containsMunicipality |
Alenquer
NERFINISHED
ⓘ
Almeirim NERFINISHED ⓘ Curuá NERFINISHED ⓘ Faro NERFINISHED ⓘ Juruti NERFINISHED ⓘ Monte Alegre NERFINISHED ⓘ Oriximiná NERFINISHED ⓘ Prainha NERFINISHED ⓘ Santarém NERFINISHED ⓘ Terra Santa NERFINISHED ⓘ Óbidos NERFINISHED ⓘ |
| country | Brazil ⓘ |
| definedBy | Brazilian Institute of Geography and Statistics NERFINISHED ⓘ |
| hasAdministrativeCenter | Santarém NERFINISHED ⓘ |
| hasCulturalInfluence |
indigenous communities
ⓘ
ribeirinho riverine populations ⓘ |
| hasEconomicActivity |
agriculture
ⓘ
fishing ⓘ forestry ⓘ mining ⓘ river transport ⓘ |
| hasFeature |
dense river network
ⓘ
floodplains ⓘ tropical rainforest vegetation ⓘ |
| hasMajorCity | Santarém NERFINISHED ⓘ |
| hasOfficialNameInPortuguese | Mesorregião do Baixo Amazonas NERFINISHED ⓘ |
| hasTransportMode |
fluvial transport
ⓘ
regional airports ⓘ |
| languageOfName | Portuguese ⓘ |
| locatedAlong | lower course of the Amazon River ⓘ |
| locatedIn |
Northern Region of Brazil
NERFINISHED
ⓘ
State of Pará NERFINISHED ⓘ |
| locatedInBiome | Amazon rainforest NERFINISHED ⓘ |
| locatedInPartOfState | western Pará ⓘ |
| locatedOnRiver | Amazon River NERFINISHED ⓘ |
| partOf | Brazilian mesoregion system ⓘ |
| riverSystem | Amazon River basin NERFINISHED ⓘ |
| timeZone |
BRT
ⓘ
Brasília Time ⓘ |
| usedFor |
regional planning
ⓘ
statistical purposes ⓘ |
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: Mesoregion of Lower Amazon Description of subject: The Mesoregion of Lower Amazon is an administrative and geographic region in the western part of Brazil’s Pará state, centered around the city of Santarém and encompassing areas along the lower course of the Amazon River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
lower Amazon valley