Ulvsundasjön
E1021083
Ulvsundasjön is a bay of Lake Mälaren in Stockholm, Sweden, known for bordering several city districts and serving as a popular area for boating and waterfront recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ulvsundasjön canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13084532 — 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: Ulvsundasjön Context triple: [Kristineberg, adjacentTo, Ulvsundasjön]
-
A.
Lundevatn
Lundevatn is a lake in Agder county in southern Norway, known for its elongated shape and scenic surroundings.
-
B.
Sandsvatn
Sandsvatn is a freshwater lake on the Faroe Islands' island of Sandoy, known for its scenic surroundings and birdlife.
-
C.
Järla Sjö
Järla Sjö is a lake and residential area in the eastern suburbs of Stockholm, Sweden, known for its scenic waterfront setting within Nacka.
-
D.
Vallentunasjön
Vallentunasjön is a lake in Stockholm County, Sweden, known for its birdlife, recreational activities, and proximity to the town of Vallentuna.
-
E.
Saltsjön
Saltsjön is a bay of the Baltic Sea forming part of the inner Stockholm archipelago and the main sea approach to central Stockholm.
- 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: Ulvsundasjön Target entity description: Ulvsundasjön is a bay of Lake Mälaren in Stockholm, Sweden, known for bordering several city districts and serving as a popular area for boating and waterfront recreation.
-
A.
Lundevatn
Lundevatn is a lake in Agder county in southern Norway, known for its elongated shape and scenic surroundings.
-
B.
Sandsvatn
Sandsvatn is a freshwater lake on the Faroe Islands' island of Sandoy, known for its scenic surroundings and birdlife.
-
C.
Järla Sjö
Järla Sjö is a lake and residential area in the eastern suburbs of Stockholm, Sweden, known for its scenic waterfront setting within Nacka.
-
D.
Vallentunasjön
Vallentunasjön is a lake in Stockholm County, Sweden, known for its birdlife, recreational activities, and proximity to the town of Vallentuna.
-
E.
Saltsjön
Saltsjön is a bay of the Baltic Sea forming part of the inner Stockholm archipelago and the main sea approach to central Stockholm.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
bay
ⓘ
body of water ⓘ geographical feature ⓘ |
| basinCountry | Sweden NERFINISHED ⓘ |
| borderedBy |
city districts of Stockholm
ⓘ
industrial and commercial areas ⓘ residential areas ⓘ |
| connectedTo | other bays of Lake Mälaren ⓘ |
| continent | Europe ⓘ |
| country | Sweden ⓘ |
| hasEconomicUse | marinas and small-scale boating services ⓘ |
| hasEnvironmentalContext |
part of Stockholm’s blue-green infrastructure
ⓘ
urban waterway ⓘ |
| hasLanguageOfSurroundingArea | Swedish ⓘ |
| hasNameOriginLanguage | Swedish ⓘ |
| hasRecreationalActivity |
canoeing
ⓘ
cycling along the waterfront ⓘ kayaking ⓘ motor boating ⓘ sightseeing by boat ⓘ walking along the waterfront ⓘ |
| hasShore | urban waterfronts ⓘ |
| hasTypeOfWater | freshwater ⓘ |
| isPartOf | Stockholm archipelago and lake landscape ⓘ |
| isPopularFor |
boating
ⓘ
recreation ⓘ |
| locatedIn | Stockholm NERFINISHED ⓘ |
| locatedInAdministrativeTerritory |
Stockholm County
NERFINISHED
ⓘ
Stockholm Municipality NERFINISHED ⓘ |
| locatedInHydrologicalSystem | Mälaren drainage basin NERFINISHED ⓘ |
| locatedInTimeZone |
Central European Summer Time
ⓘ
Central European Time ⓘ |
| near | central Stockholm NERFINISHED ⓘ |
| partOf | Lake Mälaren NERFINISHED ⓘ |
| use |
boating
ⓘ
outdoor activities ⓘ waterfront recreation ⓘ |
| waterbody | Lake Mälaren NERFINISHED ⓘ |
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: Ulvsundasjön Description of subject: Ulvsundasjön is a bay of Lake Mälaren in Stockholm, Sweden, known for bordering several city districts and serving as a popular area for boating and waterfront recreation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.