Lake Sarnen
E334745
Lake Sarnen is a scenic alpine lake in the canton of Obwalden in central Switzerland, known for its clear waters and surrounding mountain landscapes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Sarnen canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2803047 — 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 Sarnen Context triple: [Aare basin, contains, Lake Sarnen]
-
A.
Lake Thun
Lake Thun is a large alpine lake in the Bernese Oberland region of Switzerland, renowned for its scenic mountain backdrop, historic lakeside towns, and popular boating and water sports.
-
B.
Lake Sempach
Lake Sempach is a small lake in central Switzerland, known for its scenic surroundings, birdlife, and recreational activities such as swimming and boating.
-
C.
Lake Brienz
Lake Brienz is a deep, turquoise-colored alpine lake in central Switzerland, renowned for its dramatic mountain scenery and crystal-clear waters.
-
D.
Lake of Biel
Lake of Biel is a scenic lake in western Switzerland’s Seeland region, known for its vineyards, islands, and role in the Jura water correction system.
-
E.
Lake Lucerne
Lake Lucerne is a picturesque, fjord-like lake in central Switzerland, renowned for its dramatic mountain scenery, historic sites, and role as a major tourist destination.
- 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 Sarnen Target entity description: Lake Sarnen is a scenic alpine lake in the canton of Obwalden in central Switzerland, known for its clear waters and surrounding mountain landscapes.
-
A.
Lake Thun
Lake Thun is a large alpine lake in the Bernese Oberland region of Switzerland, renowned for its scenic mountain backdrop, historic lakeside towns, and popular boating and water sports.
-
B.
Lake Sempach
Lake Sempach is a small lake in central Switzerland, known for its scenic surroundings, birdlife, and recreational activities such as swimming and boating.
-
C.
Lake Brienz
Lake Brienz is a deep, turquoise-colored alpine lake in central Switzerland, renowned for its dramatic mountain scenery and crystal-clear waters.
-
D.
Lake of Biel
Lake of Biel is a scenic lake in western Switzerland’s Seeland region, known for its vineyards, islands, and role in the Jura water correction system.
-
E.
Lake Lucerne
Lake Lucerne is a picturesque, fjord-like lake in central Switzerland, renowned for its dramatic mountain scenery, historic sites, and role as a major tourist destination.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
lake
ⓘ
natural freshwater lake ⓘ |
| administrativeTerritory |
Giswil
ⓘ
surface form:
municipality of Giswil
municipality of Sachseln ⓘ municipality of Sarnen ⓘ |
| averageDepth | approximately 22 metres ⓘ |
| basinCountry | Switzerland ⓘ |
| climateZone | temperate alpine climate ⓘ |
| country | Switzerland ⓘ |
| drainsInto | Lake Lucerne via Sarner Aa ⓘ |
| elevationAboveSeaLevel | approximately 469 metres ⓘ |
| hasIsland | no significant natural islands ⓘ |
| hasLanguageOfficial | German ⓘ |
| hasNearbyTransport |
A8 motorway
NERFINISHED
ⓘ
Brünig railway line ⓘ |
| hasRecreationalFacility |
boat rentals
ⓘ
lakeside bathing areas ⓘ |
| hasShoreFeature |
lakeside villages
ⓘ
walking paths ⓘ |
| inflow | Sarner Aa ⓘ |
| isPopularWith |
local residents
ⓘ
tourists ⓘ |
| knownFor |
clear waters
ⓘ
scenic alpine landscape ⓘ surrounding mountain scenery ⓘ |
| length | about 7.5 kilometres ⓘ |
| locatedIn | canton of Obwalden NERFINISHED ⓘ |
| locatedInMountainRange | Alps ⓘ |
| locatedInRegion | Central Switzerland ⓘ |
| locatedInValley |
Sarnen
ⓘ
surface form:
Sarneraatal
|
| locatedNear |
Giswil
ⓘ
Sachseln ⓘ Sarnen ⓘ |
| locatedNorthOf | Brünig Pass ⓘ |
| locatedWestOf | Lake Lungern ⓘ |
| maximumDepth | 51 metres ⓘ |
| outflow | Sarner Aa ⓘ |
| partOfRiverSystem |
Aare basin
ⓘ
surface form:
Aare river basin
|
| surfaceArea | 7.5 square kilometres ⓘ |
| tourismRegion | Obwalden tourism region ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ recreation ⓘ swimming ⓘ |
| waterType | freshwater ⓘ |
| width | up to about 1.6 kilometres ⓘ |
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 Sarnen Description of subject: Lake Sarnen is a scenic alpine lake in the canton of Obwalden in central Switzerland, known for its clear waters and surrounding mountain landscapes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.