Lake Suwa
E1035064
Lake Suwa is a scenic freshwater lake in Nagano Prefecture, Japan, known for its hot spring resorts, surrounding mountains, and the traditional winter phenomenon called "Omiwatari" when ice ridges form across its frozen surface.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Suwa canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13348009 — 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 Suwa Context triple: [Chubu tourism area, hasFamousSite, Lake Suwa]
-
A.
Lake Yamanaka
Lake Yamanaka is the largest of the Fuji Five Lakes in Japan, known for its scenic views of Mount Fuji and popularity as a resort and recreational area.
-
B.
Lake Inari
Lake Inari is a large Arctic lake in northern Finland, renowned for its rugged natural beauty and cultural significance to the Indigenous Sámi people.
-
C.
Lake Chūzenji
Lake Chūzenji is a scenic mountain lake in Japan’s Tochigi Prefecture, renowned for its autumn foliage, views of Mount Nantai, and role as a centerpiece of the Nikko National Park area.
-
D.
Lake Shikotsu
Lake Shikotsu is a deep caldera lake in Hokkaido, Japan, renowned for its exceptionally clear water and scenic volcanic surroundings.
-
E.
Inawashiro Lake
Inawashiro Lake is one of Japan’s largest and clearest freshwater lakes, located near Mount Bandai in Fukushima and known for its scenic views and migratory swans.
- 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 Suwa Target entity description: Lake Suwa is a scenic freshwater lake in Nagano Prefecture, Japan, known for its hot spring resorts, surrounding mountains, and the traditional winter phenomenon called "Omiwatari" when ice ridges form across its frozen surface.
-
A.
Lake Yamanaka
Lake Yamanaka is the largest of the Fuji Five Lakes in Japan, known for its scenic views of Mount Fuji and popularity as a resort and recreational area.
-
B.
Lake Inari
Lake Inari is a large Arctic lake in northern Finland, renowned for its rugged natural beauty and cultural significance to the Indigenous Sámi people.
-
C.
Lake Chūzenji
Lake Chūzenji is a scenic mountain lake in Japan’s Tochigi Prefecture, renowned for its autumn foliage, views of Mount Nantai, and role as a centerpiece of the Nikko National Park area.
-
D.
Lake Shikotsu
Lake Shikotsu is a deep caldera lake in Hokkaido, Japan, renowned for its exceptionally clear water and scenic volcanic surroundings.
-
E.
Inawashiro Lake
Inawashiro Lake is one of Japan’s largest and clearest freshwater lakes, located near Mount Bandai in Fukushima and known for its scenic views and migratory swans.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
freshwater lake
ⓘ
lake ⓘ |
| averageDepth | approximately 4.7 metres ⓘ |
| climateInfluence | freezes in cold winters ⓘ |
| country | Japan ⓘ |
| elevationAboveSeaLevel | approximately 759 metres ⓘ |
| hasCulturalSignificance |
Shinto rituals related to Omiwatari
ⓘ
association with Suwa Taisha shrine ⓘ |
| hasEvent | Suwa Lake Fireworks Festival NERFINISHED ⓘ |
| hasIsland | none ⓘ |
| hasNearbyOnsenTown |
Kamisuwa Onsen
NERFINISHED
ⓘ
Shimosuwa Onsen NERFINISHED ⓘ Tatsuno area hot springs ⓘ |
| hasRecreation |
cycling around lakeshore
ⓘ
lake cruises ⓘ |
| hasSurroundingFeature |
Suwa Basin urban area
NERFINISHED
ⓘ
mountain ranges ⓘ |
| hasTraditionalPhenomenon | Omiwatari NERFINISHED ⓘ |
| hasWaterType | freshwater ⓘ |
| inflow | small rivers and streams of Suwa Basin ⓘ |
| isPartOf | Tenryu River system NERFINISHED ⓘ |
| isTouristDestinationFor |
boating
ⓘ
fireworks festivals ⓘ fishing ⓘ hot springs ⓘ scenic drives ⓘ |
| knownFor |
Omiwatari
NERFINISHED
ⓘ
hot spring resorts ⓘ scenic views ⓘ surrounding mountains ⓘ winter ice ridges ⓘ |
| locatedIn |
Chūbu region
NERFINISHED
ⓘ
Honshu ⓘ Nagano Prefecture NERFINISHED ⓘ Suwa Basin NERFINISHED ⓘ |
| locatedInMunicipality |
Nagano Prefecture
NERFINISHED
ⓘ
Okaya NERFINISHED ⓘ Shimosuwa NERFINISHED ⓘ Suwa NERFINISHED ⓘ |
| locatedNear |
Kirigamine Highlands
NERFINISHED
ⓘ
Suwa Taisha NERFINISHED ⓘ Yatsugatake Mountains NERFINISHED ⓘ |
| maximumDepth | approximately 7.2 metres ⓘ |
| OmiwatariIs | ice ridges forming across frozen surface ⓘ |
| OmiwatariOccursIn | winter ⓘ |
| outflow | Tenryu River NERFINISHED ⓘ |
| surfaceArea | approximately 13.3 square kilometres ⓘ |
| transportAccess |
accessible via Chūō Expressway
ⓘ
served by JR Chūō Main Line stations nearby ⓘ |
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 Suwa Description of subject: Lake Suwa is a scenic freshwater lake in Nagano Prefecture, Japan, known for its hot spring resorts, surrounding mountains, and the traditional winter phenomenon called "Omiwatari" when ice ridges form across its frozen surface.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.