İZSU (İzmir Water and Sewerage Administration)
E307598
İZSU (İzmir Water and Sewerage Administration) is the public utility responsible for managing water supply and wastewater services in the city of İzmir, Turkey.
All labels observed (2)
| Label | Occurrences |
|---|---|
| İZSU (İzmir Water and Sewerage Administration) canonical | 1 |
| İzmir Su ve Kanalizasyon İdaresi | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2892864 — 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: İZSU (İzmir Water and Sewerage Administration) Context triple: [Izmir Metropolitan Municipality, hasPart, İZSU (İzmir Water and Sewerage Administration)]
-
A.
Izmir Metropolitan Municipality
Izmir Metropolitan Municipality is the principal local government authority responsible for administering and providing public services in the city and greater metropolitan area of Izmir, Turkey.
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B.
Istanbul Metropolitan Municipality Council
The Istanbul Metropolitan Municipality Council is the main legislative and decision-making body of Istanbul’s metropolitan government, responsible for setting local policies, budgets, and regulations for the city.
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C.
Istanbul Metropolitan Municipality
Istanbul Metropolitan Municipality is the principal local government authority responsible for administering and providing public services across the city of Istanbul, Turkey.
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D.
Izmir Metro
Izmir Metro is a rapid transit rail system serving the city of Izmir, Turkey, providing high-capacity urban transportation across key districts.
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E.
İzmir ESHOT bus network
The İzmir ESHOT bus network is the primary public bus system serving the city of İzmir, Turkey, providing extensive urban and suburban routes that integrate with other modes of public transport.
- 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: İZSU (İzmir Water and Sewerage Administration) Target entity description: İZSU (İzmir Water and Sewerage Administration) is the public utility responsible for managing water supply and wastewater services in the city of İzmir, Turkey.
-
A.
Izmir Metropolitan Municipality
Izmir Metropolitan Municipality is the principal local government authority responsible for administering and providing public services in the city and greater metropolitan area of Izmir, Turkey.
-
B.
Istanbul Metropolitan Municipality Council
The Istanbul Metropolitan Municipality Council is the main legislative and decision-making body of Istanbul’s metropolitan government, responsible for setting local policies, budgets, and regulations for the city.
-
C.
Istanbul Metropolitan Municipality
Istanbul Metropolitan Municipality is the principal local government authority responsible for administering and providing public services across the city of Istanbul, Turkey.
-
D.
Izmir Metro
Izmir Metro is a rapid transit rail system serving the city of Izmir, Turkey, providing high-capacity urban transportation across key districts.
-
E.
İzmir ESHOT bus network
The İzmir ESHOT bus network is the primary public bus system serving the city of İzmir, Turkey, providing extensive urban and suburban routes that integrate with other modes of public transport.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
municipal water authority
ⓘ
public utility ⓘ water and sewerage administration ⓘ |
| aimsTo |
protect public health through wastewater management in İzmir
ⓘ
provide safe and reliable drinking water in İzmir ⓘ |
| country | Turkey ⓘ |
| hasOfficialName |
İZSU (İzmir Water and Sewerage Administration)
self-linksurface differs
ⓘ
surface form:
İzmir Su ve Kanalizasyon İdaresi
|
| headquartersLocation |
Izmir
ⓘ
surface form:
İzmir
|
| industry |
environmental services
ⓘ
water utilities ⓘ |
| jurisdiction |
Izmir Metropolitan Municipality
ⓘ
surface form:
İzmir Metropolitan Municipality
|
| languageOfWorkOrName | Turkish ⓘ |
| legalStatus |
municipal enterprise
ⓘ
public institution ⓘ |
| locatedInTimeZone | TRT ⓘ |
| operatesIn | İzmir Province ⓘ |
| ownedBy |
Izmir Metropolitan Municipality
ⓘ
surface form:
İzmir Metropolitan Municipality
|
| parentOrganization |
Izmir Metropolitan Municipality
ⓘ
surface form:
İzmir Metropolitan Municipality
|
| publicService |
urban sanitation in İzmir
ⓘ
urban water supply in İzmir ⓘ |
| regionServed |
Aegean Region
ⓘ
surface form:
Aegean Region of Turkey
|
| responsibleFor |
collection of wastewater from households and industry in İzmir
ⓘ
ensuring continuity of water supply in İzmir ⓘ handling customer complaints about water and sewerage in İzmir ⓘ issuing water and sewerage bills in İzmir ⓘ maintenance of sewer pipelines in İzmir ⓘ maintenance of water pipelines in İzmir ⓘ management of water resources in İzmir ⓘ monitoring water consumption in İzmir ⓘ operation of sewerage network in İzmir ⓘ operation of water distribution network in İzmir ⓘ planning of wastewater infrastructure in İzmir ⓘ planning of water infrastructure in İzmir ⓘ protection of drinking water basins in İzmir ⓘ treatment of municipal wastewater in İzmir ⓘ |
| sector |
sewerage services
ⓘ
wastewater management ⓘ water supply ⓘ |
| servesCity |
Izmir
ⓘ
surface form:
İzmir
|
| serviceType |
drinking water distribution
ⓘ
sewer network maintenance ⓘ stormwater management ⓘ wastewater collection ⓘ wastewater treatment ⓘ water billing and customer services ⓘ water quality monitoring ⓘ |
| shortName | İZSU ⓘ |
| website | https://www.izsu.gov.tr ⓘ |
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: İZSU (İzmir Water and Sewerage Administration) Description of subject: İZSU (İzmir Water and Sewerage Administration) is the public utility responsible for managing water supply and wastewater services in the city of İzmir, Turkey.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
İZSU (İzmir Water and Sewerage Administration)
→
hasOfficialName
→
İZSU (İzmir Water and Sewerage Administration)
self-linksurface differs
ⓘ
subject surface form:
İZSU
this entity surface form:
İzmir Su ve Kanalizasyon İdaresi