Lake Sempach
E107358
Lake Sempach is a small lake in central Switzerland, known for its scenic surroundings, birdlife, and recreational activities such as swimming and boating.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lake Sempach canonical | 3 |
| Sempachersee | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T777800 — 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 Sempach Context triple: [Swiss Plateau, contains, Lake Sempach]
-
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 Brienz
Lake Brienz is a deep, turquoise-colored alpine lake in central Switzerland, renowned for its dramatic mountain scenery and crystal-clear waters.
-
C.
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.
-
D.
Lake Neuchâtel
Lake Neuchâtel is the largest lake entirely within Switzerland, located in the French-speaking western part of the country and known for its scenic shores and surrounding vineyards.
-
E.
Lake Lugano
Lake Lugano is a glacial lake in the southern Alps, straddling the border between Switzerland and Italy and known for its picturesque scenery and lakeside towns.
- 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 Sempach Target entity description: Lake Sempach is a small lake in central Switzerland, known for its scenic surroundings, birdlife, and recreational activities such as swimming and boating.
-
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 Brienz
Lake Brienz is a deep, turquoise-colored alpine lake in central Switzerland, renowned for its dramatic mountain scenery and crystal-clear waters.
-
C.
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.
-
D.
Lake Neuchâtel
Lake Neuchâtel is the largest lake entirely within Switzerland, located in the French-speaking western part of the country and known for its scenic shores and surrounding vineyards.
-
E.
Lake Lugano
Lake Lugano is a glacial lake in the southern Alps, straddling the border between Switzerland and Italy and known for its picturesque scenery and lakeside towns.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
lake
ⓘ
natural freshwater lake ⓘ |
| averageDepth | about 41 metres ⓘ |
| basinCountry | Switzerland ⓘ |
| climateZone | temperate continental ⓘ |
| country | Switzerland ⓘ |
| elevationAboveSeaLevel | about 504 metres ⓘ |
| environmentalStatus | subject to water quality protection measures ⓘ |
| hasFeature |
nature reserves for waterbirds
ⓘ
protected reed beds ⓘ public bathing areas ⓘ |
| hasNearbySettlement |
Eich
ⓘ
Nottwil ⓘ Sempach ⓘ Sursee ⓘ |
| hasShorelineUse |
agricultural land
ⓘ
nature conservation areas ⓘ recreational facilities ⓘ |
| hasWildlife |
fish species typical of Swiss plateau lakes
ⓘ
migratory birds ⓘ waterbirds ⓘ |
| knownFor |
birdlife
ⓘ
recreational activities ⓘ scenic surroundings ⓘ |
| languageRegion | German-speaking Switzerland ⓘ |
| length | about 7.5 kilometres ⓘ |
| locatedIn |
Canton of Lucerne
ⓘ
surface form:
canton of Lucerne
|
| locatedInRegion | Central Switzerland ⓘ |
| locatedNear |
Sursee
ⓘ
town of Sempach ⓘ |
| maximumDepth | about 87 metres ⓘ |
| maxWidth | about 3 kilometres ⓘ |
| nearbyAttraction |
battlefield of Sempach
ⓘ
historic town of Sempach ⓘ |
| outflow | Sure river ⓘ |
| partOf | Swiss Plateau lake system ⓘ |
| popularActivity |
boating
ⓘ
fishing ⓘ hiking along the shore ⓘ rowing ⓘ sailing ⓘ swimming ⓘ |
| surfaceArea | about 14.5 square kilometres ⓘ |
| usedFor |
recreation
ⓘ
tourism ⓘ water sports ⓘ |
| 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 Sempach Description of subject: Lake Sempach is a small lake in central Switzerland, known for its scenic surroundings, birdlife, and recreational activities such as swimming and boating.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sempachersee