Bornsjön
E475240
Bornsjön is a lake in Stockholm County, Sweden, known as a protected freshwater reservoir and nature area near Salem.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bornsjön canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4853016 — 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: Bornsjön Context triple: [Salem Municipality, locatedByWaterBody, Bornsjön]
-
A.
Munksjön
Munksjön is a small urban lake situated in central Jönköping in southern Sweden, known for its promenades, recreational areas, and proximity to the city’s downtown.
-
B.
Saltsjön
Saltsjön is a bay of the Baltic Sea forming part of the inner Stockholm archipelago and the main sea approach to central Stockholm.
-
C.
Storsjön
Storsjön is a large lake in central Sweden, famed for its scenic surroundings and the local legend of the lake monster Storsjöodjuret.
-
D.
Hovsjö
Hovsjö is a residential district in the city of Södertälje, Sweden, known for its large-scale housing estates and diverse population.
-
E.
Brunnsviken
Brunnsviken is a scenic bay in the Stockholm area of Sweden, known for its surrounding parks, recreational areas, and cultural landmarks.
- 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: Bornsjön Target entity description: Bornsjön is a lake in Stockholm County, Sweden, known as a protected freshwater reservoir and nature area near Salem.
-
A.
Munksjön
Munksjön is a small urban lake situated in central Jönköping in southern Sweden, known for its promenades, recreational areas, and proximity to the city’s downtown.
-
B.
Saltsjön
Saltsjön is a bay of the Baltic Sea forming part of the inner Stockholm archipelago and the main sea approach to central Stockholm.
-
C.
Storsjön
Storsjön is a large lake in central Sweden, famed for its scenic surroundings and the local legend of the lake monster Storsjöodjuret.
-
D.
Hovsjö
Hovsjö is a residential district in the city of Södertälje, Sweden, known for its large-scale housing estates and diverse population.
-
E.
Brunnsviken
Brunnsviken is a scenic bay in the Stockholm area of Sweden, known for its surrounding parks, recreational areas, and cultural landmarks.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf | lake ⓘ |
| area | approximately 6.4 square kilometres ⓘ |
| country | Sweden ⓘ |
| elevationAboveSeaLevel | approximately 11 metres ⓘ |
| fishingRegulation | fishing prohibited ⓘ |
| hasBasinCountry | Sweden ⓘ |
| hasIsland | Bornsjöholmen ⓘ |
| hasNearbySettlement |
Rönninge
ⓘ
Tumba ⓘ |
| hasOutflow | Tumbaån ⓘ |
| hasSurroundingLandUse |
forest
ⓘ
nature reserve areas ⓘ |
| locatedIn |
Salem Municipality
ⓘ
Stockholm County ⓘ Södermanland province ⓘ
linked to:
Södermanland
eastern Sweden ⓘ |
| locatedNear | Salem Municipality ⓘ |
| locatedOn | Södertörn peninsula ⓘ |
| locatedSouthOf | Stockholm ⓘ |
| locatedWestOf | Saltsjön ⓘ |
| managedBy | Stockholm Vatten och Avfall ⓘ |
| maximumDepth | approximately 17 metres ⓘ |
| notableFor |
high water quality
ⓘ
importance for Stockholm drinking water ⓘ strict protection regulations ⓘ |
| partOf |
Norrström main drainage basin
ⓘ
Stockholm water supply system ⓘ
linked to:
Stockholm County lake system
|
| protectionStatus |
nature protection area
ⓘ
protected water source ⓘ |
| shoreLength | approximately 21 kilometres ⓘ |
| swimmingRegulation | bathing largely prohibited ⓘ |
| use |
drinking water source
ⓘ
freshwater reservoir ⓘ |
| waterType | freshwater lake ⓘ |
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: Bornsjön Description of subject: Bornsjön is a lake in Stockholm County, Sweden, known as a protected freshwater reservoir and nature area near Salem.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.