Lake Päijänne
E498243
Lake Päijänne is Finland’s second-largest lake, known for its clear waters, extensive archipelago, and role as a major source of drinking water and recreation in the Finnish Lakeland region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Päijänne canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T5138365 — 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: Lake Päijänne Context triple: [Finnish Lakeland, containsLake, Lake Päijänne]
-
A.
Lake Näsijärvi
Lake Näsijärvi is a large freshwater lake in southern Finland, known for bordering the city of Tampere and serving as a popular site for recreation and scenic views.
-
B.
Lake Saimaa
Lake Saimaa is Finland’s largest lake, a vast labyrinthine freshwater system in the southeast known for its intricate shoreline, islands, and the endangered Saimaa ringed seal.
-
C.
Lake Lämmi
Lake Lämmi is a smaller sub-basin of the transboundary Lake Peipus system on the border between Estonia and Russia.
-
D.
Lake Tuusulanjärvi
Lake Tuusulanjärvi is a lake in southern Finland known for its cultural heritage, with many famous Finnish artists and composers having lived and worked along its shores.
-
E.
Lake Pihkva
Lake Pihkva is the southernmost basin of the Lake Peipus system, lying along the border of Estonia and Russia and forming part of one of Europe’s largest transboundary freshwater lakes.
- 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: Lake Päijänne Target entity description: Lake Päijänne is Finland’s second-largest lake, known for its clear waters, extensive archipelago, and role as a major source of drinking water and recreation in the Finnish Lakeland region.
-
A.
Lake Näsijärvi
Lake Näsijärvi is a large freshwater lake in southern Finland, known for bordering the city of Tampere and serving as a popular site for recreation and scenic views.
-
B.
Lake Saimaa
Lake Saimaa is Finland’s largest lake, a vast labyrinthine freshwater system in the southeast known for its intricate shoreline, islands, and the endangered Saimaa ringed seal.
-
C.
Lake Lämmi
Lake Lämmi is a smaller sub-basin of the transboundary Lake Peipus system on the border between Estonia and Russia.
-
D.
Lake Tuusulanjärvi
Lake Tuusulanjärvi is a lake in southern Finland known for its cultural heritage, with many famous Finnish artists and composers having lived and worked along its shores.
-
E.
Lake Pihkva
Lake Pihkva is the southernmost basin of the Lake Peipus system, lying along the border of Estonia and Russia and forming part of one of Europe’s largest transboundary freshwater lakes.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
lake
ⓘ
natural freshwater lake ⓘ |
| connectedBy | Päijänne Water Tunnel NERFINISHED ⓘ |
| continent | Europe ⓘ |
| country | Finland ⓘ |
| formedBy | glacial activity ⓘ |
| hasCityOnShore |
Heinola
NERFINISHED
ⓘ
Jyväskylä NERFINISHED ⓘ Jämsä NERFINISHED ⓘ |
| hasFeature |
forested islands
ⓘ
numerous bays and inlets ⓘ rocky shores ⓘ |
| hasIsland |
Haukkasalo
NERFINISHED
ⓘ
Muuratsalo NERFINISHED ⓘ Onkisalo NERFINISHED ⓘ Virmailansaari NERFINISHED ⓘ |
| hasNationalPark | Päijänne National Park NERFINISHED ⓘ |
| hasProtectedArea | Päijänne National Park NERFINISHED ⓘ |
| hasTownOnShore |
Asikkala
NERFINISHED
ⓘ
Korpilahti NERFINISHED ⓘ Luhanka NERFINISHED ⓘ Padasjoki NERFINISHED ⓘ Sysmä NERFINISHED ⓘ Toivakka NERFINISHED ⓘ |
| isTouristDestination | true ⓘ |
| knownFor |
clear waters
ⓘ
drinking water supply ⓘ extensive archipelago ⓘ recreation ⓘ |
| locatedIn |
Central Finland
NERFINISHED
ⓘ
Finnish Lakeland NERFINISHED ⓘ Päijät-Häme NERFINISHED ⓘ Southern Finland NERFINISHED ⓘ |
| outflow | Kymi River NERFINISHED ⓘ |
| partOf |
Finnish Lakeland lake system
ⓘ
Kymi River basin NERFINISHED ⓘ |
| secondLargestLakeIn | Finland NERFINISHED ⓘ |
| suppliesDrinkingWaterTo |
Helsinki metropolitan area
NERFINISHED
ⓘ
Southern Finland municipalities ⓘ |
| usedFor |
drinking water supply
ⓘ
fishing ⓘ ice fishing ⓘ ice skating ⓘ recreational boating ⓘ summer cottages ⓘ swimming ⓘ |
| waterQuality | high ⓘ |
| 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: Lake Päijänne Description of subject: Lake Päijänne is Finland’s second-largest lake, known for its clear waters, extensive archipelago, and role as a major source of drinking water and recreation in the Finnish Lakeland region.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.