Polyphyto Dam
E485461
Polyphyto Dam is a major hydroelectric and water management dam in northern Greece, forming Lake Polyphyto on the Aliakmonas River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Polyphyto Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4932195 — 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: Polyphyto Dam Context triple: [Aliakmonas River, hasDam, Polyphyto Dam]
-
A.
Betania Dam
Betania Dam is a major hydroelectric dam and reservoir in Colombia, known for generating power and supporting irrigation and aquaculture in the Huila region.
-
B.
Itezhi-Tezhi Dam
Itezhi-Tezhi Dam is a major hydroelectric and water-regulation dam in Zambia that helps control flows and generate power along the Kafue River system, a key tributary of the Zambezi.
-
C.
Mutirikwi Dam
Mutirikwi Dam is a major concrete arch dam in southeastern Zimbabwe that creates Lake Mutirikwi and serves as an important source of irrigation water and hydroelectric power.
-
D.
Tantangara Dam
Tantangara Dam is a major concrete gravity dam in New South Wales, Australia, built as part of the Snowy Mountains Scheme to store water for hydroelectric power generation and irrigation.
-
E.
Wayatinah Dam
Wayatinah Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s major power generation scheme.
- 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: Polyphyto Dam Target entity description: Polyphyto Dam is a major hydroelectric and water management dam in northern Greece, forming Lake Polyphyto on the Aliakmonas River.
-
A.
Betania Dam
Betania Dam is a major hydroelectric dam and reservoir in Colombia, known for generating power and supporting irrigation and aquaculture in the Huila region.
-
B.
Itezhi-Tezhi Dam
Itezhi-Tezhi Dam is a major hydroelectric and water-regulation dam in Zambia that helps control flows and generate power along the Kafue River system, a key tributary of the Zambezi.
-
C.
Mutirikwi Dam
Mutirikwi Dam is a major concrete arch dam in southeastern Zimbabwe that creates Lake Mutirikwi and serves as an important source of irrigation water and hydroelectric power.
-
D.
Tantangara Dam
Tantangara Dam is a major concrete gravity dam in New South Wales, Australia, built as part of the Snowy Mountains Scheme to store water for hydroelectric power generation and irrigation.
-
E.
Wayatinah Dam
Wayatinah Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s major power generation scheme.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| basinCountry | Greece ⓘ |
| category |
Buildings and structures in Western Macedonia
ⓘ
Dams in Greece ⓘ Hydroelectric power stations in Greece ⓘ |
| continent | Europe ⓘ |
| country | Greece ⓘ |
| createsReservoir |
Lake Polyphyto
ⓘ
linked to:
Polyphyto Lake
|
| hasEnergySource | hydropower ⓘ |
| hasFunction |
electricity generation for the Greek power grid
ⓘ
regulation of Aliakmonas River flow ⓘ |
| hasImpact |
creation of Lake Polyphyto
ⓘ
modification of Aliakmonas River flow regime ⓘ |
| hasReservoirUse |
hydropower
ⓘ
irrigation ⓘ recreation ⓘ |
| infrastructureType | large dam ⓘ |
| isOnWaterbody | Aliakmonas River ⓘ |
| locatedIn |
Western Macedonia
ⓘ
northern Greece ⓘ
linked to:
Northern Greece
|
| locatedInAdministrativeTerritory |
Grevena regional unit
ⓘ
linked to:
Grevena (regional unit)
Kozani regional unit ⓘ
linked to:
Kozani (regional unit)
|
| locatedInCountry | Greece ⓘ |
| locatedInDrainageBasin |
Aliakmonas River basin
ⓘ
linked to:
Aliakmonas River
|
| locatedNear |
Kozani regional unit
ⓘ
linked to:
Kozani (regional unit)
Ptolemaida ⓘ Servia ⓘ |
| operator |
Public Power Corporation of Greece
ⓘ
linked to:
Public Power Corporation (PPC) of Greece
|
| owner |
Public Power Corporation of Greece
ⓘ
linked to:
Public Power Corporation (PPC) of Greece
|
| partOf | Greek national electricity system ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation support ⓘ water management ⓘ water supply ⓘ |
| regionServed |
Central Macedonia
ⓘ
Western Macedonia ⓘ |
| reservoirName |
Lake Polyphyto
ⓘ
linked to:
Polyphyto Lake
|
| reservoirNameLocal |
Limni Polyfytou
ⓘ
linked to:
Lake Polyfytos
|
| reservoirRiver | Aliakmonas River ⓘ |
| river | Aliakmonas River ⓘ |
| usedFor |
flood mitigation on Aliakmonas River
ⓘ
peak and base load electricity production ⓘ support of downstream irrigation schemes ⓘ |
| watercourseDammed | Aliakmonas River ⓘ |
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: Polyphyto Dam Description of subject: Polyphyto Dam is a major hydroelectric and water management dam in northern Greece, forming Lake Polyphyto on the Aliakmonas River.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.