Ulhitiya Oya
E554237
Ulhitiya Oya is a river in Sri Lanka that forms part of the Mahaweli River basin and contributes to regional irrigation and water management.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ulhitiya Oya canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5887626 — 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: Ulhitiya Oya Context triple: [Mahaweli River, hasTributary, Ulhitiya Oya]
-
A.
Olosega
Olosega is a small volcanic island in the Manuʻa group of American Samoa, known for its dramatic cliffs, lush vegetation, and connection by bridge to the neighboring island of Ofu.
-
B.
Ululayu
Ululayu is another name for Shalmaneser V, an Assyrian king of the 8th century BCE known for his campaigns in the Levant and the siege of Samaria.
-
C.
Ovilava
Ovilava was a major Roman-era city in the province of Noricum, located at the site of modern Wels in present-day Austria.
-
D.
Oyoko
Oyoko is one of the principal matrilineal clans of the Akan people of Ghana, historically associated with leadership and royal lineages.
-
E.
Uda
Uda is a city located in Nara Prefecture, Japan, known for its historical sites and natural scenery.
- 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: Ulhitiya Oya Target entity description: Ulhitiya Oya is a river in Sri Lanka that forms part of the Mahaweli River basin and contributes to regional irrigation and water management.
-
A.
Olosega
Olosega is a small volcanic island in the Manuʻa group of American Samoa, known for its dramatic cliffs, lush vegetation, and connection by bridge to the neighboring island of Ofu.
-
B.
Ululayu
Ululayu is another name for Shalmaneser V, an Assyrian king of the 8th century BCE known for his campaigns in the Levant and the siege of Samaria.
-
C.
Ovilava
Ovilava was a major Roman-era city in the province of Noricum, located at the site of modern Wels in present-day Austria.
-
D.
Oyoko
Oyoko is one of the principal matrilineal clans of the Akan people of Ghana, historically associated with leadership and royal lineages.
-
E.
Uda
Uda is a city located in Nara Prefecture, Japan, known for its historical sites and natural scenery.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Sri Lanka ⓘ |
| continent | Asia ⓘ |
| contributesTo |
regional irrigation
ⓘ
regional water management ⓘ |
| country | Sri Lanka ⓘ |
| drainageBasin | Mahaweli River drainage basin ⓘ |
| environmentalFunction |
contributes to watershed hydrology
ⓘ
supports local aquatic ecosystems ⓘ |
| flowsWithin |
Mahaweli development area
ⓘ
linked to:
Mahaweli Development Programme
|
| hasLanguageRegion | Sinhala-speaking regions of Sri Lanka ⓘ |
| hasRole |
component of Mahaweli irrigation schemes
ⓘ
component of regional water supply ⓘ |
| hydrologicalSystem |
Mahaweli River system
ⓘ
linked to:
Mahaweli River
|
| locatedIn |
Central Sri Lanka
ⓘ
Sri Lanka ⓘ |
| partOf |
Mahaweli River basin
ⓘ
linked to:
Mahaweli River
Sri Lanka river network ⓘ |
| supports |
local farming communities
ⓘ
paddy cultivation ⓘ |
| tributaryOf | Mahaweli River ⓘ |
| typeOfWaterBody | freshwater river ⓘ |
| usedFor |
irrigation
ⓘ
water management ⓘ |
| waterResourceFor | agriculture ⓘ |
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: Ulhitiya Oya Description of subject: Ulhitiya Oya is a river in Sri Lanka that forms part of the Mahaweli River basin and contributes to regional irrigation and water management.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.