Sombreiro River
E426940
The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sombreiro River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2694186 — 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: Sombreiro River Context triple: [Rivers State, hasRiver, Sombreiro River]
-
A.
Guapimirim River
The Guapimirim River is a Brazilian river in the state of Rio de Janeiro that flows through the Guapimirim Environmental Protection Area before emptying into Guanabara Bay.
-
B.
Beberibe River
The Beberibe River is a waterway in northeastern Brazil that flows through the city of Recife, contributing to its estuarine landscape and urban geography.
-
C.
Taquari River
The Taquari River is a significant waterway in central-western Brazil that flows through the Pantanal wetlands before joining the Paraguay River.
-
D.
Sabor River
The Sabor River is a significant river in northeastern Portugal that flows through the Trás-os-Montes region before joining the Douro.
-
E.
Caceribu River
The Caceribu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows into Guanabara Bay.
- 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: Sombreiro River Target entity description: The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
-
A.
Guapimirim River
The Guapimirim River is a Brazilian river in the state of Rio de Janeiro that flows through the Guapimirim Environmental Protection Area before emptying into Guanabara Bay.
-
B.
Beberibe River
The Beberibe River is a waterway in northeastern Brazil that flows through the city of Recife, contributing to its estuarine landscape and urban geography.
-
C.
Taquari River
The Taquari River is a significant waterway in central-western Brazil that flows through the Pantanal wetlands before joining the Paraguay River.
-
D.
Sabor River
The Sabor River is a significant river in northeastern Portugal that flows through the Trás-os-Montes region before joining the Douro.
-
E.
Caceribu River
The Caceribu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows into Guanabara Bay.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| continent | Africa ⓘ |
| country | Nigeria ⓘ |
| flowsThrough | riverine communities of the Niger Delta ⓘ |
| hasEconomicRole |
local livelihoods
ⓘ
rural economy support ⓘ |
| hasEnvironmentalRole |
aquatic habitat provision
ⓘ
wetland ecosystem support ⓘ |
| hasUse |
inland water transport
ⓘ
small-scale agriculture ⓘ subsistence fishing ⓘ |
| locatedIn |
Niger Delta
NERFINISHED
ⓘ
southern Nigeria ⓘ |
| partOf | Niger Delta river system NERFINISHED ⓘ |
| region | South–South Nigeria NERFINISHED ⓘ |
| supports |
agriculture
ⓘ
fishing ⓘ local transportation ⓘ |
| usedFor |
canoe transport
ⓘ
small boat navigation ⓘ |
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: Sombreiro River Description of subject: The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.