Oum Er-Rbia River
E505065
The Oum Er-Rbia River is one of Morocco’s longest and most important rivers, flowing from the Middle Atlas mountains to the Atlantic Ocean and supporting extensive agricultural and hydropower activities along its course.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Oum Er-Rbia River canonical | 3 |
| نهر أبي رقراق | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5241997 — 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: Oum Er-Rbia River Context triple: [Khenifra, river, Oum Er-Rbia River]
-
A.
Salhir River
The Salhir River is a major river in Crimea that flows through the city of Simferopol before emptying into the Syvash lagoon system.
-
B.
Angereb River
The Angereb River is a tributary watercourse in northeastern Africa that feeds into the Atbara River within the Nile River basin.
-
C.
Bou Regreg River
The Bou Regreg River is a major waterway on Morocco’s Atlantic coast that separates the capital city of Rabat from its twin city Salé and has historically served as an important harbor and trade route.
-
D.
Barka River
The Barka River is an intermittent river in Eritrea and Sudan that plays a crucial role in the region’s agriculture and has given its name to Eritrea’s Gash-Barka administrative region.
-
E.
Caicus River
The Caicus River is an ancient river in western Anatolia (modern-day Turkey) historically significant for flowing near the Hellenistic city of Pergamon.
- 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: Oum Er-Rbia River Target entity description: The Oum Er-Rbia River is one of Morocco’s longest and most important rivers, flowing from the Middle Atlas mountains to the Atlantic Ocean and supporting extensive agricultural and hydropower activities along its course.
-
A.
Salhir River
The Salhir River is a major river in Crimea that flows through the city of Simferopol before emptying into the Syvash lagoon system.
-
B.
Angereb River
The Angereb River is a tributary watercourse in northeastern Africa that feeds into the Atbara River within the Nile River basin.
-
C.
Bou Regreg River
The Bou Regreg River is a major waterway on Morocco’s Atlantic coast that separates the capital city of Rabat from its twin city Salé and has historically served as an important harbor and trade route.
-
D.
Barka River
The Barka River is an intermittent river in Eritrea and Sudan that plays a crucial role in the region’s agriculture and has given its name to Eritrea’s Gash-Barka administrative region.
-
E.
Caicus River
The Caicus River is an ancient river in western Anatolia (modern-day Turkey) historically significant for flowing near the Hellenistic city of Pergamon.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| alsoKnownAs |
Oued Oum Er-Rbia
NERFINISHED
ⓘ
Oum er-Rbia NERFINISHED ⓘ |
| basinCountry | Morocco NERFINISHED ⓘ |
| continent | Africa ⓘ |
| country | Morocco ⓘ |
| dischargesNear |
Azemmour
NERFINISHED
ⓘ
El Jadida NERFINISHED ⓘ |
| drainageBasin | Oum Er-Rbia Basin NERFINISHED ⓘ |
| flowsDirectionGeneral | east-to-west ⓘ |
| flowsInto | Atlantic Ocean NERFINISHED ⓘ |
| flowsThrough |
Beni Mellal-Khenifra region
NERFINISHED
ⓘ
Casablanca-Settat region NERFINISHED ⓘ Khénifra Province NERFINISHED ⓘ |
| hasDam |
Al Massira Dam
NERFINISHED
ⓘ
Bin el Ouidane Dam NERFINISHED ⓘ Daourat Dam NERFINISHED ⓘ |
| hasHydroelectricPlant |
Al Massira hydroelectric plant
NERFINISHED
ⓘ
Bin el Ouidane hydroelectric plant NERFINISHED ⓘ |
| hasTributary |
Derna River
NERFINISHED
ⓘ
El-Abid River NERFINISHED ⓘ Oued El Abid NERFINISHED ⓘ Tessaout River NERFINISHED ⓘ |
| importance | one of Morocco's most important rivers ⓘ |
| languageOfName | Arabic ⓘ |
| lengthApproxKm | 550 ⓘ |
| locatedIn | Morocco NERFINISHED ⓘ |
| majorUse |
drinking water supply
ⓘ
hydropower generation ⓘ irrigation ⓘ |
| mouth | Atlantic Ocean NERFINISHED ⓘ |
| nameMeaning | Mother of Springtime NERFINISHED ⓘ |
| nearbyCityAtMouth |
Azemmour
NERFINISHED
ⓘ
El Jadida NERFINISHED ⓘ |
| rankByLengthInMorocco | second-longest river in Morocco ⓘ |
| region |
Atlantic coastal plain of Morocco
NERFINISHED
ⓘ
Middle Atlas NERFINISHED ⓘ |
| sourceLocation | Middle Atlas mountains NERFINISHED ⓘ |
| sourceRegion | Middle Atlas NERFINISHED ⓘ |
| supportsActivity |
agriculture
ⓘ
fishing ⓘ hydroelectric power production ⓘ |
| supportsIrrigatedPerimeters |
Doukkala plain
NERFINISHED
ⓘ
Tadla plain NERFINISHED ⓘ |
| waterResourceFor |
central Morocco
ⓘ
coastal plains near Casablanca ⓘ |
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: Oum Er-Rbia River Description of subject: The Oum Er-Rbia River is one of Morocco’s longest and most important rivers, flowing from the Middle Atlas mountains to the Atlantic Ocean and supporting extensive agricultural and hydropower activities along its course.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
نهر أبي رقراق