Geiseltalsee
E731056
Geiseltalsee is a large artificial lake in Saxony-Anhalt, Germany, created by flooding a former lignite mining area and now used for recreation and nature conservation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Geiseltalsee canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8031810 — 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: Geiseltalsee Context triple: [Mücheln (Geiseltal), locatedNear, Geiseltalsee]
-
A.
Würmsee
Würmsee is the historical name of the Bavarian lake now known as Starnberger See, one of Germany’s largest and most famous lakes near Munich.
-
B.
Scharmützelsee
Scharmützelsee is a popular lake in eastern Germany known for its scenic surroundings, recreational activities, and spa resorts.
-
C.
Grunewaldsee
Grunewaldsee is a popular forest lake in Berlin known for its scenic surroundings and dog-friendly bathing areas.
-
D.
Jungfernsee
Jungfernsee is a scenic lake on the outskirts of Potsdam and Berlin, known for its historic villas, palaces, and location along the former inner German border.
-
E.
Ziegelsee
Ziegelsee is a lake in the city of Schwerin in northern Germany, known for its scenic waterfront and role in the region’s interconnected lake system.
- 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: Geiseltalsee Target entity description: Geiseltalsee is a large artificial lake in Saxony-Anhalt, Germany, created by flooding a former lignite mining area and now used for recreation and nature conservation.
-
A.
Würmsee
Würmsee is the historical name of the Bavarian lake now known as Starnberger See, one of Germany’s largest and most famous lakes near Munich.
-
B.
Scharmützelsee
Scharmützelsee is a popular lake in eastern Germany known for its scenic surroundings, recreational activities, and spa resorts.
-
C.
Grunewaldsee
Grunewaldsee is a popular forest lake in Berlin known for its scenic surroundings and dog-friendly bathing areas.
-
D.
Jungfernsee
Jungfernsee is a scenic lake on the outskirts of Potsdam and Berlin, known for its historic villas, palaces, and location along the former inner German border.
-
E.
Ziegelsee
Ziegelsee is a lake in the city of Schwerin in northern Germany, known for its scenic waterfront and role in the region’s interconnected lake system.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
lake ⓘ |
| basinCountry | Germany ⓘ |
| completionDate | around 2011 (filling largely completed) ⓘ |
| country | Germany NERFINISHED ⓘ |
| formedBy | flooding of former open-cast lignite mine ⓘ |
| hasEconomicActivity |
recreational services
ⓘ
tourism industry ⓘ |
| hasEnvironmentalOrigin | post-mining landscape recultivation project ⓘ |
| hasMaximumDepth | approximately 78 m ⓘ |
| hasNearbySettlement |
Braunsbedra
NERFINISHED
ⓘ
Frankleben NERFINISHED ⓘ Mücheln (Geiseltal) NERFINISHED ⓘ Stöbnitz NERFINISHED ⓘ |
| hasProtectedAreaStatus |
bird habitat
ⓘ
landscape protection area ⓘ |
| hasShoreLength | approximately 43 km ⓘ |
| hasSurfaceArea | approximately 18.4 km² ⓘ |
| hasTouristInfrastructure |
beaches
ⓘ
cycling paths ⓘ hiking trails ⓘ marinas ⓘ viewpoints ⓘ |
| hasUse |
bathing
ⓘ
fishing ⓘ nature conservation ⓘ recreation ⓘ sailing ⓘ tourism ⓘ water sports ⓘ wildlife habitat ⓘ |
| hasVolume | approximately 423 million m³ ⓘ |
| inception | early 2000s (flooding phase) ⓘ |
| locatedAtElevation | about 98 m above sea level ⓘ |
| locatedIn |
Germany
ⓘ
Saxony-Anhalt ⓘ |
| locatedInAdministrativeTerritorialEntity | Saalekreis NERFINISHED ⓘ |
| locatedInEcologicalRegion | Central European Plain NERFINISHED ⓘ |
| locatedInFormerTerritorialEntity | East Germany NERFINISHED ⓘ |
| locatedInMiningArea | Geiseltal lignite mining district NERFINISHED ⓘ |
| locatedInOrNextToBodyOfWater | Geisel river basin NERFINISHED ⓘ |
| locatedInTimeZone |
Central European Summer Time
ⓘ
Central European Time ⓘ |
| locatedNear |
Halle (Saale)
NERFINISHED
ⓘ
Leipzig NERFINISHED ⓘ Merseburg NERFINISHED ⓘ |
| partOf | Central German lignite mining region NERFINISHED ⓘ |
| waterType | freshwater ⓘ |
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: Geiseltalsee Description of subject: Geiseltalsee is a large artificial lake in Saxony-Anhalt, Germany, created by flooding a former lignite mining area and now used for recreation and nature conservation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.