Havel lakes
E573001
The Havel lakes are a chain of interconnected lakes along the River Havel in and around Berlin, popular for boating, swimming, and scenic waterfront recreation.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Havel lakes canonical | 2 |
| Havel lake system | 1 |
| Havel lakes system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6173863 — 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: Havel lakes Context triple: [Wannsee district, hasView, Havel lakes]
-
A.
Tatra lake system
The Tatra lake system is a group of high-mountain glacial lakes scattered throughout the Tatra Mountains on the Polish–Slovak border, known for their clear waters and dramatic alpine surroundings.
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B.
Pisochne Lake
Pisochne Lake is a freshwater lake located in Ukraine’s Volyn Oblast, known for its clear waters and natural surroundings.
-
C.
Popovo Lake
Popovo Lake is a prominent glacial lake in Bulgaria, known as one of the largest and most scenic high-altitude lakes in the Pirin Mountains.
-
D.
Štrkovec Lake
Štrkovec Lake is a popular urban recreational lake in the Ružinov district of Bratislava, known for its walking paths, sports facilities, and local wildlife.
-
E.
Slapy Reservoir
Slapy Reservoir is a large artificial lake and popular recreational area in the Czech Republic, created by damming the Vltava River for hydroelectric power, flood control, and water sports.
- 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: Havel lakes Target entity description: The Havel lakes are a chain of interconnected lakes along the River Havel in and around Berlin, popular for boating, swimming, and scenic waterfront recreation.
-
A.
Tatra lake system
The Tatra lake system is a group of high-mountain glacial lakes scattered throughout the Tatra Mountains on the Polish–Slovak border, known for their clear waters and dramatic alpine surroundings.
-
B.
Pisochne Lake
Pisochne Lake is a freshwater lake located in Ukraine’s Volyn Oblast, known for its clear waters and natural surroundings.
-
C.
Popovo Lake
Popovo Lake is a prominent glacial lake in Bulgaria, known as one of the largest and most scenic high-altitude lakes in the Pirin Mountains.
-
D.
Štrkovec Lake
Štrkovec Lake is a popular urban recreational lake in the Ružinov district of Bratislava, known for its walking paths, sports facilities, and local wildlife.
-
E.
Slapy Reservoir
Slapy Reservoir is a large artificial lake and popular recreational area in the Czech Republic, created by damming the Vltava River for hydroelectric power, flood control, and water sports.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
chain of lakes
ⓘ
lake district ⓘ |
| adjacentTo |
Berlin city center (via Havel and canals)
NERFINISHED
ⓘ
Potsdam NERFINISHED ⓘ |
| basinCountry | Germany ⓘ |
| climate | temperate seasonal climate ⓘ |
| connectedBy |
artificial canals
ⓘ
natural channels ⓘ |
| country | Germany NERFINISHED ⓘ |
| hasPart |
Glienicker Lake
NERFINISHED
ⓘ
Griebnitzsee NERFINISHED ⓘ Großer Wannsee NERFINISHED ⓘ Großer Wannsee–Kleiner Wannsee complex NERFINISHED ⓘ Großer Zernsee NERFINISHED ⓘ Jungfernsee NERFINISHED ⓘ Kleiner Wannsee NERFINISHED ⓘ Plauer See (Havel) NERFINISHED ⓘ Schlachtensee NERFINISHED ⓘ Schwielowsee NERFINISHED ⓘ Tegeler See NERFINISHED ⓘ Templiner See NERFINISHED ⓘ |
| hasRecreationActivity | watersports ⓘ |
| hasRecreationFacilityType |
beaches
ⓘ
boat rental stations ⓘ marinas ⓘ |
| locatedIn |
Berlin
NERFINISHED
ⓘ
Brandenburg ⓘ River Havel basin ⓘ |
| navigableFor |
pleasure craft
ⓘ
small commercial vessels ⓘ |
| near |
Glienicke Bridge
NERFINISHED
ⓘ
Grunewald forest NERFINISHED ⓘ Pfaueninsel NERFINISHED ⓘ |
| partOf |
River Havel
NERFINISHED
ⓘ
waterway network around Berlin ⓘ |
| popularWith |
Berlin residents
ⓘ
tourists ⓘ |
| regionType | urban and peri-urban lake landscape ⓘ |
| usedFor |
fishing
ⓘ
recreational boating ⓘ rowing ⓘ sailing ⓘ scenic waterfront recreation ⓘ swimming ⓘ tourism ⓘ |
| watercourse | Havel NERFINISHED ⓘ |
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: Havel lakes Description of subject: The Havel lakes are a chain of interconnected lakes along the River Havel in and around Berlin, popular for boating, swimming, and scenic waterfront recreation.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Havel lakes system
this entity surface form:
Havel lake system