Lake Constance
E176598
Lake Constance is a large freshwater lake on the Rhine at the northern foot of the Alps, bordering Germany, Austria, and Switzerland and serving as a major regional hub for tourism, transport, and natural conservation.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Lake Constance canonical | 63 |
| Bodensee | 3 |
| Lake Constance at Rorschach | 1 |
| Lake Constance section | 1 |
| Lake Überlingen | 1 |
| Lower Lake Constance | 1 |
| Obersee (upper Lake Constance) | 1 |
| Upper Lake Constance | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1537855 — 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 Constance Context triple: [Baden-Württemberg, hasLake, Lake Constance]
-
A.
Königssee
Königssee is a picturesque alpine lake in southeastern Germany, renowned for its emerald-green waters, steep surrounding mountains, and status as one of the cleanest lakes in the country.
-
B.
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.
-
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.
Chiemsee
Chiemsee is one of Germany’s largest lakes, famed for its scenic Alpine setting and historic islands such as Herrenchiemsee with its royal palace.
-
E.
Schluchsee
Schluchsee is a large reservoir and popular recreational lake in Germany’s Black Forest, known for swimming, sailing, and scenic hiking.
- 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 Constance Target entity description: Lake Constance is a large freshwater lake on the Rhine at the northern foot of the Alps, bordering Germany, Austria, and Switzerland and serving as a major regional hub for tourism, transport, and natural conservation.
-
A.
Königssee
Königssee is a picturesque alpine lake in southeastern Germany, renowned for its emerald-green waters, steep surrounding mountains, and status as one of the cleanest lakes in the country.
-
B.
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.
-
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.
Chiemsee
Chiemsee is one of Germany’s largest lakes, famed for its scenic Alpine setting and historic islands such as Herrenchiemsee with its royal palace.
-
E.
Schluchsee
Schluchsee is a large reservoir and popular recreational lake in Germany’s Black Forest, known for swimming, sailing, and scenic hiking.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
border lake
ⓘ
freshwater lake ⓘ lake ⓘ |
| alsoKnownAs |
Lake Constance
ⓘ
surface form:
Bodensee
|
| averageDepth | approximately 90 metres ⓘ |
| bordersCity |
Bregenz
ⓘ
Friedrichshafen ⓘ Konstanz ⓘ Lindau ⓘ Romanshorn ⓘ Rorschach ⓘ |
| countryBorder |
Austria
ⓘ
Germany ⓘ Switzerland ⓘ |
| elevationAboveSeaLevel | approximately 395 metres ⓘ |
| environmentalRole | important habitat for migratory birds ⓘ |
| environmentalStatus | subject to international conservation agreements ⓘ |
| governedBy | International Commission for the Protection of Lake Constance ⓘ |
| hasFerryService |
Friedrichshafen–Romanshorn ferry
ⓘ
Konstanz–Meersburg ferry ⓘ |
| hasIsland |
Lindau Island
ⓘ
surface form:
Lindau island
Mainau ⓘ Reichenau ⓘ |
| hasPart |
Lake Constance
self-linksurface differs
ⓘ
surface form:
Lake Überlingen
Lake Constance self-linksurface differs ⓘ
surface form:
Lower Lake Constance
Lake Constance self-linksurface differs ⓘ
surface form:
Upper Lake Constance
|
| inflow |
Argen
ⓘ
Bregenzer Ach ⓘ High Rhine ⓘ
surface form:
Rhine
|
| locatedAt | northern foot of the Alps ⓘ |
| locatedIn | Central Europe ⓘ |
| locatedInRegion |
Baden-Württemberg
ⓘ
Bavaria ⓘ Swiss canton of Schaffhausen ⓘ Swiss canton of St. Gallen ⓘ Swiss canton of Thurgau ⓘ Vorarlberg ⓘ |
| locatedOnRiver | Rhine ⓘ |
| majorUse |
drinking water supply
ⓘ
fisheries ⓘ freight transport ⓘ passenger transport ⓘ recreation ⓘ tourism ⓘ |
| maximumDepth | approximately 251 metres ⓘ |
| outflow | Rhine ⓘ |
| partOf |
European Union–Switzerland border
ⓘ
Rhine River Basin ⓘ
surface form:
Rhine basin
|
| shorelineLength | approximately 273 kilometres ⓘ |
| surfaceArea | approximately 536 square kilometres ⓘ |
| waterVolume | approximately 48 cubic 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 Constance Description of subject: Lake Constance is a large freshwater lake on the Rhine at the northern foot of the Alps, bordering Germany, Austria, and Switzerland and serving as a major regional hub for tourism, transport, and natural conservation.
Referenced by (72)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Southern Germany
subject surface form:
Southwestern Germany
subject surface form:
A1 (Swiss motorway)
this entity surface form:
Obersee (upper Lake Constance)
this entity surface form:
Bodensee
this entity surface form:
Upper Lake Constance
this entity surface form:
Lower Lake Constance
this entity surface form:
Lake Überlingen
subject surface form:
Kesswil
subject surface form:
Kesswil
subject surface form:
Wolfurt
subject surface form:
Allgäu