Oulujärvi
E628660
Oulujärvi is one of Finland’s largest lakes, located in the Kainuu region and known for its extensive archipelago and recreational opportunities.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Oulujärvi canonical | 7 |
| Lake Oulujärvi | 4 |
| Oulujärvi basin | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6939561 — 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: Oulujärvi Context triple: [Oulujoki, flowsFrom, Oulujärvi]
-
A.
Suomusjärvi
Suomusjärvi was a former municipality in Southwest Finland that became part of the city of Salo after a regional consolidation.
-
B.
Mouhijärvi
Mouhijärvi was a former municipality in Finland that later became part of the city of Sastamala.
-
C.
Lake Vuokkijärvi
Lake Vuokkijärvi is a Finnish lake in the Kainuu region, known for its natural scenery and its proximity to the municipality of Suomussalmi.
-
D.
Lake Vesijärvi
Lake Vesijärvi is a freshwater lake in southern Finland’s Lakeland region, known for its recreational use, surrounding forests, and proximity to the city of Lahti.
-
E.
Lake Jyväsjärvi
Lake Jyväsjärvi is a central Finnish lake that borders and visually defines much of the cityscape of Jyväskylä.
- 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: Oulujärvi Target entity description: Oulujärvi is one of Finland’s largest lakes, located in the Kainuu region and known for its extensive archipelago and recreational opportunities.
-
A.
Suomusjärvi
Suomusjärvi was a former municipality in Southwest Finland that became part of the city of Salo after a regional consolidation.
-
B.
Mouhijärvi
Mouhijärvi was a former municipality in Finland that later became part of the city of Sastamala.
-
C.
Lake Vuokkijärvi
Lake Vuokkijärvi is a Finnish lake in the Kainuu region, known for its natural scenery and its proximity to the municipality of Suomussalmi.
-
D.
Lake Vesijärvi
Lake Vesijärvi is a freshwater lake in southern Finland’s Lakeland region, known for its recreational use, surrounding forests, and proximity to the city of Lahti.
-
E.
Lake Jyväsjärvi
Lake Jyväsjärvi is a central Finnish lake that borders and visually defines much of the cityscape of Jyväskylä.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | lake ⓘ |
| averageDepth | approximately 7 metres ⓘ |
| basinCountry | Finland ⓘ |
| climateZone | boreal climate ⓘ |
| country | Finland ⓘ |
| elevationAboveSeaLevel | approximately 122 metres ⓘ |
| freezesDuring | winter ⓘ |
| hasInflow |
Kajaaninjoki
ⓘ
Nuasjärvi ⓘ Sotkamonjoki ⓘ |
| hasIsland |
Hevossaari
ⓘ
Kaarresalo ⓘ Manamansalo ⓘ Niskanselkä islands ⓘ |
| hasNickname | Kainuu Sea ⓘ |
| hasOutflow | Oulujoki ⓘ |
| hasProtectedArea | Oulujärvi National Park (historical, on Manamansalo) ⓘ |
| hasShoreline | highly indented shoreline with many bays and peninsulas ⓘ |
| knownFor |
boating
ⓘ
camping ⓘ extensive archipelago ⓘ ice fishing ⓘ recreational fishing ⓘ sandy beaches ⓘ snowmobiling on ice in winter ⓘ summer cottages ⓘ |
| locatedIn |
Kainuu
ⓘ
Northern Finland ⓘ |
| maximumDepth | approximately 38 metres ⓘ |
| nearbyCity | Kajaani ⓘ |
| nearbyMunicipality |
Kuhmo
ⓘ
Paltamo ⓘ Vaala ⓘ |
| partOf | Oulujoki drainage basin ⓘ |
| popularActivity |
birdwatching
ⓘ
kayaking ⓘ sailing ⓘ |
| popularFishSpecies |
perch
ⓘ
pike ⓘ zander ⓘ |
| rankInFinlandByArea | one of the largest lakes in Finland ⓘ |
| region | Kainuu ⓘ |
| surfaceArea | approximately 928 square kilometres ⓘ |
| usedFor |
hydropower production downstream via Oulujoki
ⓘ
recreation ⓘ tourism ⓘ |
| 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: Oulujärvi Description of subject: Oulujärvi is one of Finland’s largest lakes, located in the Kainuu region and known for its extensive archipelago and recreational opportunities.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.